Cita APA (7a ed.)

Key, M. R. (1977). Nonverbal communication: A research guide & bibliography. Scarecrow Press.

Cita Chicago Style (17a ed.)

Key, Mary Ritchie. Nonverbal Communication: A Research Guide & Bibliography. Metuchen [N.J.]: Scarecrow Press, 1977.

Cita MLA (9a ed.)

Key, Mary Ritchie. Nonverbal Communication: A Research Guide & Bibliography. Scarecrow Press, 1977.