Crawford, M. (1976). Air Pollution Control Theory. MCGRAW-HILL.
Cita Chicago Style (17a ed.)Crawford, Martin. Air Pollution Control Theory. USA, NEW YORK: MCGRAW-HILL, 1976.
Cita MLA (9a ed.)Crawford, Martin. Air Pollution Control Theory. MCGRAW-HILL, 1976.
Precaución: Estas citas no son 100% exactas.