All authors
Paul Ekman
Books12
with Wallace V. Friesen
with Richard J. Davidson
Facial Action Coding System/Investigator's Guide-Part 1/6701
Facial Action Coding System/Investigator's Guide-Part 1/6701
1993
with Wallace V. Friesen
Paul Ekman
with Wallace V. Friesen
with Richard J. Davidson
with Wallace V. Friesen