Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.