Citazione Stile APA (7a Edizione)

Spitzer, D. W. (2012). Variable speed drives: Principles and applications for energy cost savings (4th ed.). Momentum Press.

Citazione stile Chigago Style (17a edizione)

Spitzer, David W. Variable Speed Drives: Principles and Applications for Energy Cost Savings. 4th ed. [New York, N.Y.] (222 East 46th Street, New York, NY 10017): Momentum Press, 2012.

Citatione MLA (9a ed.)

Spitzer, David W. Variable Speed Drives: Principles and Applications for Energy Cost Savings. 4th ed. Momentum Press, 2012.