APA Citation

Bull, H. S., & Bull, H. S. (1974). Direct-current machinery. New York, New York: J. Wiley.

Chicago Style Citation

Bull, Hempstead S., and Hempstead S. Bull. Direct-current Machinery. New York, New York: J. Wiley, 1974.

MLA Citation

Bull, Hempstead S., and Hempstead S. Bull. Direct-current Machinery. New York, New York: J. Wiley, 1974.

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