Cita APA (7a ed.)

Polka, D. (2003). Motors and drives: A practical technology guide. ISA.

Cita Chicago Style (17a ed.)

Polka, Dave. Motors and Drives: A Practical Technology Guide. Research Triangle Park, NC: ISA, 2003.

Cita MLA (8a ed.)

Polka, Dave. Motors and Drives: A Practical Technology Guide. ISA, 2003.