Dyfyniad APA

(2006). Soil and water conservation engineering. Thomson Delmar learning.

Dyfyniad Arddull Chicago

Soil and Water Conservation Engineering. Thomson Delmar learning, 2006.

Dyfyniad MLA

Soil and Water Conservation Engineering. Thomson Delmar learning, 2006.

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