Gaya APA

Knapp, M, L., Hall, J, A. (1997). Nonverbal Communication in Human Interaction (Ed.4). Winston: Harcourt Brace Jovanovich Publishers.

Gaya MLA

Knapp, Mark, L., Hall, Judith, A. "Nonverbal Communication in Human Interaction". Ed.4 Winston: Harcourt Brace Jovanovich Publishers, 1997. Text.