Dyfyniad APA

Bot, A. (2005). The importance of soil organic matter: Key to drought-resistant soil and sustained food and production. Rome: Food and Agirculture Organization of the United Nations.

Dyfyniad Arddull Chicago

Bot, Alexandra. The Importance of Soil Organic Matter: Key to Drought-resistant Soil and Sustained Food and Production. Rome: Food and Agirculture Organization of the United Nations, 2005.

Dyfyniad MLA

Bot, Alexandra. The Importance of Soil Organic Matter: Key to Drought-resistant Soil and Sustained Food and Production. Rome: Food and Agirculture Organization of the United Nations, 2005.

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