Emotion in the human face: guide-lines for research and an integration of findings
[by] Paul Ekman, Wallace V. Friesen, and Phoebe Ellsworth.
- New York Pergamon Press [1972]
- xii, 191 p. illus. 24 cm.
- Pergamon general psychology series PGPS-11 .
Rev. ed. published as: Emotion in the human face / edited by Paul Ekman. 2nd ed. 1982.