Watzlawick, P. (1977). How real is real? confusion, disinformation communication. Vintage Books.
Chicago-viite (17. p.)Watzlawick, Paul. How Real Is Real? Confusion, Disinformation Communication. New York: Vintage Books, 1977.
MLA-viite (9. p.)Watzlawick, Paul. How Real Is Real? Confusion, Disinformation Communication. Vintage Books, 1977.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.