APA (7th ed.) Citation

Dörken, H. (1976). The Professional psychologist today. Jossey-Bass.

Chicago Style (17th ed.) Citation

Dörken, Herbert. The Professional Psychologist Today. San Francisco: Jossey-Bass, 1976.

MLA (9th ed.) Citation

Dörken, Herbert. The Professional Psychologist Today. Jossey-Bass, 1976.