APA-referens

(1980). Agronomic - economic research on soils of the tropics. 1978-1979 Report. USA: U.S.Agency for International Development.

Chicago-stil citat

Agronomic - Economic Research On Soils of the Tropics. 1978-1979 Report. USA: U.S.Agency for International Development, 1980.

MLA-referens

Agronomic - Economic Research On Soils of the Tropics. 1978-1979 Report. USA: U.S.Agency for International Development, 1980.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.