Dyfyniad APA

Layzer, J. A. (2012). The environmental case (3rd ed.). CQ Press.

Dyfyniad Arddull Chicago

Layzer, Judith A. The Environmental Case. 3rd ed. Washington, D.C.: CQ Press, 2012.

Dyfyniad MLA

Layzer, Judith A. The Environmental Case. 3rd ed. CQ Press, 2012.

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