Wise, W. (1968). Killer smog: The world's worst air pollution. Rand McNally.
Cita Chicago (17th ed.)Wise, William. Killer Smog: The World's Worst Air Pollution. Skokie, Il: Rand McNally, 1968.
Cita MLA (9th ed.)Wise, William. Killer Smog: The World's Worst Air Pollution. Rand McNally, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.