APA (7e ed.) Bronvermelding

Tunbridge, R. J., & Jackson, R. L. (1980). The economics of stage carriage operation by private bus and coach companies. Transport and Road Research Laboratory.

Chicago (17e ed.) Bronvermelding

Tunbridge, R. J., en R. L. Jackson. The Economics of Stage Carriage Operation by Private Bus and Coach Companies. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1980.

MLA (9e ed.) Bronvermelding

Tunbridge, R. J., en R. L. Jackson. The Economics of Stage Carriage Operation by Private Bus and Coach Companies. Transport and Road Research Laboratory, 1980.