APA-referens (7:e uppl.)

Western State (Nigeria). Ministry of Agriculture and Natural Resources. (1971). Activities and programmes.

Chicago-referens (17:e uppl.)

Western State (Nigeria). Ministry of Agriculture and Natural Resources. Activities and Programmes. [Ibadan, 1971.

MLA-referens (8:e uppl.)

Western State (Nigeria). Ministry of Agriculture and Natural Resources. Activities and Programmes. 1971.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.