APA
Poffenberger A., . (1961). Principles of Applied Psychology. : Allied Pacific Private Limited.
Chicago
Poffenberger A.T, . 1961. Principles of Applied Psychology. : Allied Pacific Private Limited.
Harvard
Poffenberger A., . (1961). Principles of Applied Psychology. : Allied Pacific Private Limited.
MLA
Poffenberger A.T, . Principles of Applied Psychology. : Allied Pacific Private Limited. 1961.
