205401 Allen, C. J. (1959). Modern railways: Their engineering, equipment and operation. Westport, Connecticut : Greenwood Press.
Citação do estilo Chicago (17ª ed.)205401 Allen, Cecil John. Modern Railways: Their Engineering, Equipment and Operation. Westport, Connecticut : Greenwood Press, 1959.
Citação MLA (9ª ed.)205401 Allen, Cecil John. Modern Railways: Their Engineering, Equipment and Operation. Westport, Connecticut : Greenwood Press, 1959.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.