APA-referens

IRRI. (1980). Soil - related constraints to food production in the tropics. Philippines: IRRI.

Chicago-stil citat

IRRI. Soil - Related Constraints to Food Production in the Tropics. Philippines: IRRI, 1980.

MLA-referens

IRRI. Soil - Related Constraints to Food Production in the Tropics. Philippines: IRRI, 1980.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.