APA-referens

(1987). 1987 Census of agriculture. USA: U.S Department of Commerce.

Chicago-stil citat

1987 Census of Agriculture. USA: U.S Department of Commerce, 1987.

MLA-referens

1987 Census of Agriculture. USA: U.S Department of Commerce, 1987.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.