Citação norma APA

(1976). Agronomic - economic research on tropical soils. Annual report for 1975. USA: U.S.Agency for International Development.

Citação norma Chicago

Agronomic - Economic Research On Tropical Soils. Annual Report for 1975. USA: U.S.Agency for International Development, 1976.

Citação norma MLA

Agronomic - Economic Research On Tropical Soils. Annual Report for 1975. USA: U.S.Agency for International Development, 1976.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.