APA-referens

Foster, A. (1959). Approved practice in soil conservation. Oxford and IBH publishing.

Chicago-stil citat

Foster, A.B. Approved Practice in Soil Conservation. Calcutta: Oxford and IBH publishing, 1959.

MLA-referens

Foster, A.B. Approved Practice in Soil Conservation. Oxford and IBH publishing, 1959.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.