(2009). Environmental law handbook (20th ed.). Government Institutes.
Chicago Stili AlıntıEnvironmental Law Handbook. 20th ed. Lanham: Government Institutes, 2009.
MLA AlıntıEnvironmental Law Handbook. 20th ed. Government Institutes, 2009.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..