Cita APA

Tough, J. M., & O'Flaherty, C. A. (1971). Passenger conveyors: An innovatory form of communal transport. Allen.

Citación estilo Chicago

Tough, John M., and C. A. O'Flaherty. Passenger Conveyors: An Innovatory Form of Communal Transport. London: Allen, 1971.

Cita MLA

Tough, John M., and C. A. O'Flaherty. Passenger Conveyors: An Innovatory Form of Communal Transport. Allen, 1971.

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