Παραπομπή APA

B.R. Bugelski. (1961). Introduction to the principles of psychology. Holt, Rinehart and Winston.

Παραπομπή Chicago Style

B.R. Bugelski. Introduction to the Principles of Psychology. New york: Holt, Rinehart and Winston, 1961.

Παραπομπή MLA

B.R. Bugelski. Introduction to the Principles of Psychology. Holt, Rinehart and Winston, 1961.