Locomotive engineers & fireman's manual of questions and answers to date of November 1939.
APA Citation
Herrick, M. F. (1939). Locomotive engineers & fireman's manual of questions and answers to date of November 1939. 2d ed. Boone, Iowa: M. F. Herrick.
MLA Citation
Herrick, Mark F. Locomotive Engineers & Fireman's Manual of Questions And Answers to Date of November 1939. 2d ed. Boone, Iowa: M. F. Herrick, 1939.
Warning: These citations may not always be complete (especially for serials).