APA (7th ed.) Citation

Harper, R. G., Wiens, A. N., & Matarazzo, J. D. (1978). Nonverbal communication: The state of the art. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Harper, Robert Gale, Arthur N. Wiens, and Joseph D. Matarazzo. Nonverbal Communication: The State of the Art. New York [etc.]: John Wiley & Sons, 1978.

MLA (9th ed.) Citation

Harper, Robert Gale, et al. Nonverbal Communication: The State of the Art. John Wiley & Sons, 1978.