APA (7th ed.) Zitazioa
ebrary, Inc, Sullivan, T. F. P., & Bell, C. L. (2011). Environmental law handbook (21st ed.). Government Institutes.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Thomas F. P. Sullivan, eta Christopher L. Bell. Environmental Law Handbook. 21st ed. Lanham, Md.: Government Institutes, 2011.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Environmental Law Handbook. 21st ed. Government Institutes, 2011.
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