Lua APA (7ú heag.)
ebrary, Inc, & Key, M. R. (1980). The relationship of verbal and nonverbal communication. Mouton.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Mary Ritchie Key. The Relationship of Verbal and Nonverbal Communication. The Hague ; New York: Mouton, 1980.
Lua MLA (9ú heag.)
ebrary, Inc, agus Mary Ritchie Key. The Relationship of Verbal and Nonverbal Communication. Mouton, 1980.
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