APA Style
Dumas, J, S., Loring, B, A. (2008).
Moderating usability tests : principles and practice for interacting .
Amsterdam:
Morgan Kaufmann.
MLA Style
Dumas, Joseph, S., Loring, Beth, A.
"Moderating usability tests : principles and practice for interacting".
Amsterdam:
Morgan Kaufmann,
2008.
Text.