Stepping motors : a guide to theory and practice.
MLA
Acarnley, Paul. Stepping Motors : a Guide to Theory and Practice. 4th ed. London: Institution of Engineering and Technology, 2007.
APA
Acarnley, P. (2007). Stepping motors : a guide to theory and practice. 4th ed. London: Institution of Engineering and Technology.
Chicago
Acarnley, Paul, Stepping Motors: A Guide to Theory and Practice. 4th ed. London: Institution of Engineering and Technology, 2007.