एपीए उद्धरण

Harwood, P. B. (1970). Control of electric motors ed by Ralph A Millermaster. (4th ed.).

शिकागो स्टाइल उद्धरण

Harwood, Paisley Beach. Control of Electric Motors Ed by Ralph A Millermaster. 4th ed. 1970.

एमएलए उद्धरण

Harwood, Paisley Beach. Control of Electric Motors Ed by Ralph A Millermaster. 4th ed. 1970.