Cita APA (7a ed.)

Key, M. R., & Key, M. R. (1982). Nonverbal Communication Today (Reprint 2019.). De Gruyter.

Cita Chicago Style (17a ed.)

Key, Mary Ritchie, y Mary Ritchie Key. Nonverbal Communication Today. Reprint 2019. Berlin ; Boston: De Gruyter, 1982.

Cita MLA (9a ed.)

Key, Mary Ritchie, y Mary Ritchie Key. Nonverbal Communication Today. Reprint 2019. De Gruyter, 1982.