Dyfyniad APA

Shortle, J. S., & Abler, D. G. (2001). Environmental policies for agricultural pollution control. New York: CABI Pub.

Dyfyniad Arddull Chicago

Shortle, J. S., và David Gerrard Abler. Environmental Policies for Agricultural Pollution Control. New York: CABI Pub, 2001.

Dyfyniad MLA

Shortle, J. S., và David Gerrard Abler. Environmental Policies for Agricultural Pollution Control. New York: CABI Pub, 2001.

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