APA (7th ed.) Zitazioa
Environmental Law Institute & ebrary, Inc. (2002). Healthier schools: A review of state policies for improving indoor air quality. Environmental Law Institute.
Chicago Style (17th ed.) Zitazioa
Environmental Law Institute eta Inc ebrary. Healthier Schools: A Review of State Policies for Improving Indoor Air Quality. Washington, DC: Environmental Law Institute, 2002.
MLA (9th ed.) Zitazioa
Environmental Law Institute eta Inc ebrary. Healthier Schools: A Review of State Policies for Improving Indoor Air Quality. Environmental Law Institute, 2002.
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