Cita APA (7a ed.)
Umunna, N., & Iji, P. (1993). The natural feed resources for ruminant animals in Nigeria. Nigeria Ministry of Agriculture and Water Resources.
Cita Chicago Style (17a ed.)
Umunna, N.N, y P.A Iji. The Natural Feed Resources for Ruminant Animals in Nigeria. Nigeria Ministry of Agriculture and Water Resources, 1993.
Cita MLA (9a ed.)
Umunna, N.N, y P.A Iji. The Natural Feed Resources for Ruminant Animals in Nigeria. Nigeria Ministry of Agriculture and Water Resources, 1993.
Precaución: Estas citas no son 100% exactas.