Dyfyniad APA

International Potash Institute. Potassium research and agricultural production.

Dyfyniad Arddull Chicago

International Potash Institute. Potassium Research and Agricultural Production.

Dyfyniad MLA

International Potash Institute. Potassium Research and Agricultural Production.

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