Up-to-date air-brake catechism
Subtitle: a complete study of the equipment manufactured by the Westinghouse Air Brake Company.
By: By Robert H. Blackall.  Contains nearly 2,000 questions with their answers.
Edition: 21st ed., rev. and enl.
Publisher: The N. W. Henley Publishing Co.
Published: 1907
Place of publication: New York
Language: eng
Number of pages: 375
Subjects: Westinghouse air-brake
Notes: At head of title: 1907 edition.