APA (7th ed.) Citation

Keller, K. J. (2008). NEC 2008 need to know: The 20% of the code you need 80% of the time. McGraw-Hill.

Chicago Style (17th ed.) Citation

Keller, Kimberley J. NEC 2008 Need to Know: The 20% of the Code You Need 80% of the Time. New York: McGraw-Hill, 2008.

MLA (9th ed.) Citation

Keller, Kimberley J. NEC 2008 Need to Know: The 20% of the Code You Need 80% of the Time. McGraw-Hill, 2008.