Παραπομπή APA

Robert D Smither. (1998). Psychology of work and human performance (ed.3.). Longman.

Παραπομπή Chicago Style

Robert D Smither. Psychology of Work and Human Performance. ed.3. New York: Longman, 1998.

Παραπομπή MLA

Robert D Smither. Psychology of Work and Human Performance. ed.3. Longman, 1998.