Tough, J. M., & O'Flaherty, C. A. (1971). Passenger conveyors: An innovatory form of communal transport. Allen.
Chicagoスタイル(17版)引用形式Tough, John M., , C. A. O'Flaherty. Passenger Conveyors: An Innovatory Form of Communal Transport. London: Allen, 1971.
MLA(8版)引用形式Tough, John M., , C. A. O'Flaherty. Passenger Conveyors: An Innovatory Form of Communal Transport. Allen, 1971.
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