APA (7th ed.) Zitazioa

ebrary, Inc, & Key, M. R. (1980). The relationship of verbal and nonverbal communication. Mouton.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, eta Mary Ritchie Key. The Relationship of Verbal and Nonverbal Communication. The Hague ; New York: Mouton, 1980.

MLA (9th ed.) Zitazioa

ebrary, Inc, eta Mary Ritchie Key. The Relationship of Verbal and Nonverbal Communication. Mouton, 1980.