Παραπομπή APA

Harvey N Switzky. (2006). Mental Retardation Personality And Motivational System Vol.31. Elsevier.

Παραπομπή Chicago Style

Harvey N Switzky. Mental Retardation Personality And Motivational System Vol.31. London: Elsevier, 2006.

Παραπομπή MLA

Harvey N Switzky. Mental Retardation Personality And Motivational System Vol.31. Elsevier, 2006.