APA (7th ed.) Citation

Alexander S. Langsdorf,M.M.E.,D.Sc. (1959). PRINCIPLES OF DIRECT-CURRENT MACHINES. McGraw-Hill Book Company, Inc.

Chicago Style (17th ed.) Citation

Alexander S. Langsdorf,M.M.E.,D.Sc. PRINCIPLES OF DIRECT-CURRENT MACHINES. McGraw-Hill Book Company, Inc, 1959.

MLA (8th ed.) Citation

Alexander S. Langsdorf,M.M.E.,D.Sc. PRINCIPLES OF DIRECT-CURRENT MACHINES. McGraw-Hill Book Company, Inc, 1959.

Warning: These citations may not always be 100% accurate.