Dyfyniad APA

McGregor, G. I. (1994). Environmental law and enforcement. Lewis Publishers.

Dyfyniad Arddull Chicago

McGregor, Gregor I. Environmental Law and Enforcement. Boca Raton: Lewis Publishers, 1994.

Dyfyniad MLA

McGregor, Gregor I. Environmental Law and Enforcement. Lewis Publishers, 1994.

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