APA (7th ed.) Citation

Oldfield, R. H., & Tyler, E. (1981). The elasticity of medium-distance rail travel. Transport and Road Research Laboratory.

Chicago Style (17th ed.) Citation

Oldfield, R. H., and Elizabeth Tyler. The Elasticity of Medium-distance Rail Travel. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.

MLA (9th ed.) Citation

Oldfield, R. H., and Elizabeth Tyler. The Elasticity of Medium-distance Rail Travel. Transport and Road Research Laboratory, 1981.