APA-referens (7:e uppl.)
Environmental Law Institute & ebrary, Inc. (2002). Healthier schools: A review of state policies for improving indoor air quality. Environmental Law Institute.
Chicago-referens (17:e uppl.)
Environmental Law Institute och Inc ebrary. Healthier Schools: A Review of State Policies for Improving Indoor Air Quality. Washington, DC: Environmental Law Institute, 2002.
MLA-referens (9:e uppl.)
Environmental Law Institute och Inc ebrary. Healthier Schools: A Review of State Policies for Improving Indoor Air Quality. Environmental Law Institute, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.