Dyfyniad APA

Henry D Foth. (1984). Fundamentals of soil science. New York: John Wiley & Sons.

Dyfyniad Arddull Chicago

Henry D Foth. Fundamentals of Soil Science. New York: John Wiley & Sons, 1984.

Dyfyniad MLA

Henry D Foth. Fundamentals of Soil Science. New York: John Wiley & Sons, 1984.

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