Παραπομπή APA

Super & John O Crites. (1968). Appraising vocational fitness. Universal book stall.

Παραπομπή Chicago Style

Super και John O Crites. Appraising Vocational Fitness. Delhi: Universal book stall, 1968.

Παραπομπή MLA

Super και John O Crites. Appraising Vocational Fitness. Universal book stall, 1968.