Dyfyniad APA

International Potash Institute. Transition from extensive to intensive agriculture with fertilizers.

Dyfyniad Arddull Chicago

International Potash Institute. Transition from Extensive to Intensive Agriculture with Fertilizers.

Dyfyniad MLA

International Potash Institute. Transition from Extensive to Intensive Agriculture with Fertilizers.

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