Παραπομπή APA

Super, D. E. (1957). Psychology of careers: An introduction to vocational development. Harper & Row.

Παραπομπή Chicago Style

Super, Donald E. Psychology of Careers: An Introduction to Vocational Development. New York: Harper & Row, 1957.

Παραπομπή MLA

Super, Donald E. Psychology of Careers: An Introduction to Vocational Development. Harper & Row, 1957.