Cita APA (7th ed.)
ebrary, Inc. (2004). Air quality management in the United States. National Academies Press.
Cita Chicago (17th ed.)
ebrary, Inc. Air Quality Management in the United States. Washington, DC ; [Great Britian]: National Academies Press, 2004.
Cita MLA (9th ed.)
ebrary, Inc. Air Quality Management in the United States. National Academies Press, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.