APA-referens (7:e uppl.)
Kibel, P. S. (2002). Awkward evolution: Citizen enforcement at the North American Environmental Commission. Environmental Law Institute.
Chicago-referens (17:e uppl.)
Kibel, Paul Stanton. Awkward Evolution: Citizen Enforcement at the North American Environmental Commission. Washington, D.C.: Environmental Law Institute, 2002.
MLA-referens (9:e uppl.)
Kibel, Paul Stanton. Awkward Evolution: Citizen Enforcement at the North American Environmental Commission. Environmental Law Institute, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.