VanGrudy, A. B. (1987). Creative problem solving: A guide for trainers and management. Quorum Books.
Chicago-viite (17. p.)VanGrudy, Arthur B. Creative Problem Solving: A Guide for Trainers and Management. New York: Quorum Books, 1987.
MLA-viite (9. p.)VanGrudy, Arthur B. Creative Problem Solving: A Guide for Trainers and Management. Quorum Books, 1987.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.