APA (7th ed.) Citation

Gregersen, T., & MacIntyre, P. D. (2017). Optimizing language learners' nonverbal behavior: From tenet to technique. Multilingual Matters.

Chicago Style (17th ed.) Citation

Gregersen, Tammy, and Peter D. MacIntyre. Optimizing Language Learners' Nonverbal Behavior: From Tenet to Technique. Bristol: Multilingual Matters, 2017.

MLA (9th ed.) Citation

Gregersen, Tammy, and Peter D. MacIntyre. Optimizing Language Learners' Nonverbal Behavior: From Tenet to Technique. Multilingual Matters, 2017.