Gaya APA

Liwschitz-Garik, M., Whipple, C, C. (1956). Direct current machines. (1956). : New York : D. Van Nostrand Company, Inc.,.

Gaya MLA

Liwschitz-Garik, Michael., Whipple, Clyde, C.. "Direct current machines.". 1956 : New York : D. Van Nostrand Company, Inc.,, 1956. Text.