Παραπομπή APA

Quarles, J., & Lewis, W. H. (1990). The new clean air act: A guide to the clean air program as amended in 1990. [s.l.]: Morgan, Lewis & Bockius.

Παραπομπή Chicago Style

Quarles, John, and William H. Lewis. The New Clean Air Act: A Guide to the Clean Air Program As Amended in 1990. [s.l.]: Morgan, Lewis & Bockius, 1990.

Παραπομπή MLA

Quarles, John, and William H. Lewis. The New Clean Air Act: A Guide to the Clean Air Program As Amended in 1990. [s.l.]: Morgan, Lewis & Bockius, 1990.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.