Westinghouse Air Brake Company. (1890). Instruction book, the quick action automatic brake. Duquesne Printing and Publishing.
Chicago-referens (17:e uppl.)Westinghouse Air Brake Company. Instruction Book, the Quick Action Automatic Brake. Pittsburgh, Pa.: Duquesne Printing and Publishing, 1890.
MLA-referens (8:e uppl.)Westinghouse Air Brake Company. Instruction Book, the Quick Action Automatic Brake. Duquesne Printing and Publishing, 1890.
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