APA (7th ed.) Citation

Pennebaker, J. W. (1997). Opening up: The healing power of expressing emotions. Guilford.

Chicago Style (17th ed.) Citation

Pennebaker, James W. Opening Up: The Healing Power of Expressing Emotions. New York [etc.]: Guilford, 1997.

MLA (9th ed.) Citation

Pennebaker, James W. Opening Up: The Healing Power of Expressing Emotions. Guilford, 1997.

Warning: These citations may not always be 100% accurate.