Gaya APA

Knapp, M, L., Vangelist, A, L. (1999). INTERPERSONAL COMMUNICATION AND HUMAN RELATIONSHIPS (Ed.4). USA: A Person Education.

Gaya MLA

Knapp, Mark, L., Vangelist, Anita, L. "INTERPERSONAL COMMUNICATION AND HUMAN RELATIONSHIPS". Ed.4 USA: A Person Education, 1999. Text.