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