Dyfyniad APA

(1991). Tropical root crops in a developing economy. Wageningen, Netherland: ISTRC.

Dyfyniad Arddull Chicago

Tropical Root Crops in a Developing Economy. Wageningen, Netherland: ISTRC, 1991.

Dyfyniad MLA

Tropical Root Crops in a Developing Economy. Wageningen, Netherland: ISTRC, 1991.

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