Goodman, E., Kuniavsky, M., & Moed, A. (2012). Observing the user experience: A practitioner's guide to user research (2nd ed.). Morgan Kaufmann.
Chicago Style (17th ed.) CitationGoodman, Elizabeth, Mike Kuniavsky, and Andrea Moed. Observing the User Experience: A Practitioner's Guide to User Research. 2nd ed. Waltham, Mass: Morgan Kaufmann, 2012.
MLA (9th ed.) CitationGoodman, Elizabeth, et al. Observing the User Experience: A Practitioner's Guide to User Research. 2nd ed. Morgan Kaufmann, 2012.
Warning: These citations may not always be 100% accurate.