APA (7th ed.) Citation

Gronau, R. (1970). The value of time in passenger transportation: The demand for air travel. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Gronau, Reuben. The Value of Time in Passenger Transportation: The Demand for Air Travel. New York: National Bureau of Economic Research, 1970.

MLA (9th ed.) Citation

Gronau, Reuben. The Value of Time in Passenger Transportation: The Demand for Air Travel. National Bureau of Economic Research, 1970.