APA (7th ed.) Citation

Penman, R. (1980). Communication processes and relationships. Acad. Press.

Chicago Style (17th ed.) Citation

Penman, Robyn. Communication Processes and Relationships. London [u.a.]: Acad. Press, 1980.

MLA (9th ed.) Citation

Penman, Robyn. Communication Processes and Relationships. Acad. Press, 1980.