Pettigrew, W. F. (1899). A manual of locomotive engineering: With an historical introduction : a practical text-book for the use of engine builders, designers, and draughtsmen, railway engineers, and students. C. Griffin.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Pettigrew, William Frank. A Manual of Locomotive Engineering: With an Historical Introduction : A Practical Text-book for the Use of Engine Builders, Designers, and Draughtsmen, Railway Engineers, and Students. London: C. Griffin, 1899.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Pettigrew, William Frank. A Manual of Locomotive Engineering: With an Historical Introduction : A Practical Text-book for the Use of Engine Builders, Designers, and Draughtsmen, Railway Engineers, and Students. C. Griffin, 1899.
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