APA (7th ed.) Citation

Oldfield, R. H. (1981). The effect of income on bus travel. Transport and Road Research Laboratory.

Chicago Style (17th ed.) Citation

Oldfield, R. H. The Effect of Income on Bus Travel. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.

MLA (9th ed.) Citation

Oldfield, R. H. The Effect of Income on Bus Travel. Transport and Road Research Laboratory, 1981.