MLA

Sauro, Jeff, James R Lewis, and James R Sauro. Quantifying the User Experience. Morgan Kaufmann, 2012.

APA

Sauro, J., Lewis, J. R, & Sauro, J. R. (2012). Quantifying the User Experience. Morgan Kaufmann.

Chicago

Sauro, Jeff, James R Lewis, and James R Sauro. Quantifying the User Experience. : Morgan Kaufmann, 2012.