Watts, P. F., & Naysmith, A. (1980). Urban bus revenue collection: Current methods and directions of development. Transport and Road Research Laboratory.
Citazione stile Chigago Style (17a edizione)Watts, P. F., e A. Naysmith. Urban Bus Revenue Collection: Current Methods and Directions of Development. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1980.
Citatione MLA (9a ed.)Watts, P. F., e A. Naysmith. Urban Bus Revenue Collection: Current Methods and Directions of Development. Transport and Road Research Laboratory, 1980.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.