Cita APA (7a ed.)
Keenan, S., & Wortley, P. (1994). Agricultural bibliographic imformation sources. Technical Centre for Agricultural and Rural Cooperation.
Cita Chicago Style (17a ed.)
Keenan, S., y P.J Wortley. Agricultural Bibliographic Imformation Sources. Technical Centre for Agricultural and Rural Cooperation, 1994.
Cita MLA (9a ed.)
Keenan, S., y P.J Wortley. Agricultural Bibliographic Imformation Sources. Technical Centre for Agricultural and Rural Cooperation, 1994.
Precaución: Estas citas no son 100% exactas.