393191 Watts, P. F., & Britain), T. a. R. R. L. (. (1980). Urban bus revenue collection: Current methods and directions of development. Crowthorne, Berkshire : Transport and Road Research Laboratory.
Cita Chicago Style (17a ed.)393191 Watts, P. F., y Transport and Road Research Laboratory (Great Britain). Urban Bus Revenue Collection: Current Methods and Directions of Development. Crowthorne, Berkshire : Transport and Road Research Laboratory, 1980.
Cita MLA (9a ed.)393191 Watts, P. F., y Transport and Road Research Laboratory (Great Britain). Urban Bus Revenue Collection: Current Methods and Directions of Development. Crowthorne, Berkshire : Transport and Road Research Laboratory, 1980.
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