APA (7th ed.) Citation

Allen, C. J. (1949). Locomotive practice and performance in the twentieth century. W. Heffer.

Chicago Style (17th ed.) Citation

Allen, Cecil John. Locomotive Practice and Performance in the Twentieth Century. Cambridge [England]: W. Heffer, 1949.

MLA (9th ed.) Citation

Allen, Cecil John. Locomotive Practice and Performance in the Twentieth Century. W. Heffer, 1949.