Shortle, J. S., & Abler, D. G. (2001). Environmental policies for agricultural pollution control. New York: CABI Pub.
Chicago Style aipamenaShortle, J. S., và David Gerrard Abler. Environmental Policies for Agricultural Pollution Control. New York: CABI Pub, 2001.
MLA aipamenaShortle, J. S., và David Gerrard Abler. Environmental Policies for Agricultural Pollution Control. New York: CABI Pub, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.