Citazione Stile APA (7a Edizione)

Karen, R. L. (1974). An introduction to behavior theory and its applications. Harper & Row.

Citazione stile Chigago Style (17a edizione)

Karen, Robert L. An Introduction to Behavior Theory and Its Applications. New York: Harper & Row, 1974.

Citatione MLA (9a ed.)

Karen, Robert L. An Introduction to Behavior Theory and Its Applications. Harper & Row, 1974.