Não informado. (2001). Annual Report on the Department of Agricultural Research, Federation of Nigeria. Federation of Nigeria, Department of Agriculture.
Cytowanie według stylu Chicago (wyd. 17)Não informado. Annual Report on the Department of Agricultural Research, Federation of Nigeria. Lagos: Federation of Nigeria, Department of Agriculture, 2001.
Cytowanie według stylu MLA (wyd. 8)Não informado. Annual Report on the Department of Agricultural Research, Federation of Nigeria. Federation of Nigeria, Department of Agriculture, 2001.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..