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Disease of cowpea (Vigna unguiculata (L.) Walp) in Nigeria by Williams, R.J.

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Control of cowpea seedling mortality in Southern Nigeria by Williams, R.J.

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Identification of multiple disease resistance in cowpea by Williams, R.J.

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Increased incidence of Pythium stem rot in cowpea treated with benomyl and related fungicides by Williams, R.J., Ayanaba, A.

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Taxonomía de Centrosema by Williams, R.J., Clements, Robert J.

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Biogeografía de Centrosema by Schultze-Kraft, Rainer, Williams, R.J., Coradin, Lídio

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Small-sward testing of Stylosanthes in Northern Australia: Preliminary considerations by Burt, R.L., Edye, L.A., Williams, W.T., Gillard, P., Grof, Bela, Page, M., Shaw, N.H., Williams, R.J., Wilson, G.P.M.

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Una nueva especie de Centrosema (DC.) Benth. (Leguminosae: Papilionoideae) del Orinoco by Schultze-Kraft, Rainer, Williams, R.J.

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Una nueva especie de Centrosoema (DC.) Benth. (Leguminosae: Papilionoideae) del Orinoco by Schultze-Kraft, Rainer, Williams, R.J.

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Cowpea seedling disease control: paper presented at the Third Annual Conference of the Nigerian Society for Plant Protection, Ministry of Agriculture and Natural Resources, Benin C... by Williams, R.J.

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Etiology, epidemiology and control of cowpea mosaic disease: paper presented at the Fourth Annual Conference of the Nigerian Society for Plant Protection, International Institute o... by Gilmer, R.M., Williams, R.J.

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Bacterial wilt of cassava in Nigeria by Williams, R.J., Agboola, S.D., Schneider, R.W.

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Identification of multiple disease resistance in cowpea: abstract of papers presented at the Fourth Annual Conference of the Nigerian Society for Plant Protection, International In... by Williams, R.J.

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Anthracnose of cowpea by Williams, R.J.

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Screening cowpeas for resistance to cowpea virus: paper presented at the Fifth Annual Conference of the Nigerian Society for Plant Protection, Institute of Agricultural Research, S... by Williams, R.J.

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Comparison of varietal reactions to cowpea anthracnose in field plot and detached petiole in inoculations by Williams, R.J.

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A whitefly transmitted mosaic of lima bean in Nigeria: paper presented at the Fifth Annual Conference of the Nigerian Society for Plant Protection, Samaru, Nigeria, March 35, 1975 by Williams, R.J.

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The international testing program: aims, progress and problems seen from IITA by Williams, R.J.

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Report of Cassava Mosaic Workshop: Conference Conference Proceedings of Cassava Mosaic Workshop, International Institute of Tropical Agriculture, Ibadan, Nigeria, 11-12 December, 1... by Williams, R.J.

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