Dyfyniad APA

(2009). Soil and Environmental Analysis: Physical Methods, Second Edition, Revised, and Expanded. CRC Press.

Dyfyniad Arddull Chicago

Soil and Environmental Analysis: Physical Methods, Second Edition, Revised, and Expanded. CRC Press, 2009.

Dyfyniad MLA

Soil and Environmental Analysis: Physical Methods, Second Edition, Revised, and Expanded. CRC Press, 2009.

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