MLA

Hobart, Henry M. Electric Motors : Continuous, Polyphase, and Single-phase Motors : Their Theory and Construction. 2nd ed., entirely rewritten, revised, and enlarged London: Whittaker & Co, 1910.

APA

Hobart, H. M. (1910). Electric motors : continuous, polyphase, and single-phase motors : their theory and construction. 2nd ed., entirely rewritten, revised, and enlarged London: Whittaker & Co.

Chicago

Hobart, Henry M. Electric Motors: Continuous, Polyphase, and Single-Phase Motors : Their Theory and Construction. 2nd ed., entirely rewritten, revised, and enlarged London: Whittaker & Co, 1910.