The Definitive Guide to Google AdWords

MLA

Weller, Bert, et al. The Definitive Guide to Google Adwords. Apress, 2012.

APA

Weller, B., Calcott, L., Klein, C.Weller, B. (2012). The Definitive Guide to Google AdWords. Apress.

Chicago

Weller, Bert, Lori Calcott, Christopher Klein, and Bart Weller. The Definitive Guide to Google Adwords. : Apress, 2012.