Cita APA (7a ed.)

461561 Kirby, R. F. (1974). Road user charges - some practical considerations. Washington : Urban Institute.

Cita Chicago Style (17a ed.)

461561 Kirby, Ronald F. Road User Charges - Some Practical Considerations. Washington : Urban Institute, 1974.

Cita MLA (9a ed.)

461561 Kirby, Ronald F. Road User Charges - Some Practical Considerations. Washington : Urban Institute, 1974.