APA (7th ed.) Citation

McCormick, J. (1991). Urban air pollution. UNEP.

Chicago Style (17th ed.) Citation

McCormick, John. Urban Air Pollution. Nairobi: UNEP, 1991.

MLA (9th ed.) Citation

McCormick, John. Urban Air Pollution. UNEP, 1991.

Warning: These citations may not always be 100% accurate.