Cita APA

Walters, A. . . . . . . . . . . . . . . . . . . . . A. (1968). The economics of road user charges. The Johns Hopkins Press.

Citación estilo Chicago

Walters, A A. The Economics of Road User Charges. Baltimore, Maryland: The Johns Hopkins Press, 1968.

Cita MLA

Walters, A A. The Economics of Road User Charges. The Johns Hopkins Press, 1968.

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