Cita APA (7th ed.)

Ridker, R. G. (1967). Economic costs of air pollution: Studies in measurement. F. A. Praeger.

Cita Chicago (17th ed.)

Ridker, Ronald Gene. Economic Costs of Air Pollution: Studies in Measurement. New York: F. A. Praeger, 1967.

Cita MLA (8th ed.)

Ridker, Ronald Gene. Economic Costs of Air Pollution: Studies in Measurement. F. A. Praeger, 1967.