APA (7th ed.) Citation

Walters, A. A. (1968). The economics of road user charges / by A.A. Walters. Johns Hopkins P.

Chicago Style (17th ed.) Citation

Walters, A. A. The Economics of Road User Charges / by A.A. Walters. Johns Hopkins P, 1968.

MLA (9th ed.) Citation

Walters, A. A. The Economics of Road User Charges / by A.A. Walters. Johns Hopkins P, 1968.

Warning: These citations may not always be 100% accurate.