APA-referens

Carvajal,Manuel. (1976). Population growth and human productivity. Center for Latin American Studies.

Chicago-stil citat

Carvajal,Manuel. Population Growth and Human Productivity. Florida: Center for Latin American Studies, 1976.

MLA-referens

Carvajal,Manuel. Population Growth and Human Productivity. Center for Latin American Studies, 1976.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.