Westinghouse Air Brake Company. (1901). Air brake instruction book of the Westinghouse air brake company. [The Westinghouse air brake co.].
Chicago-viite (17. p.)Westinghouse Air Brake Company. Air Brake Instruction Book of the Westinghouse Air Brake Company. Pittsburg, Pa: [The Westinghouse air brake co.], 1901.
MLA-viite (8. p.)Westinghouse Air Brake Company. Air Brake Instruction Book of the Westinghouse Air Brake Company. [The Westinghouse air brake co.], 1901.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.