Stewart, J. (1986). Bridges not walls: A book about interpersonal communication (4th ed.). Random House.
Lua i Stíl Chicago (17ú heag.)Stewart, John. Bridges Not Walls: A Book About Interpersonal Communication. 4th ed. New York: Random House, 1986.
Lua MLA (9ú heag.)Stewart, John. Bridges Not Walls: A Book About Interpersonal Communication. 4th ed. Random House, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.