Παραπομπή σε μορφή APA (7η εκδ.)

MEDLEY, D. B., & MEDLEY, D. B. (1984). Programming Principles With Cobol I Don B. Medley And Ronald W. Eaves. South-Western Publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

MEDLEY, Don B., και Don B. MEDLEY. Programming Principles With Cobol I Don B. Medley And Ronald W. Eaves. South-Western Publishing, 1984.

Παραπομπή σε μορφή MLA (8th εκδ.)

MEDLEY, Don B., και Don B. MEDLEY. Programming Principles With Cobol I Don B. Medley And Ronald W. Eaves. South-Western Publishing, 1984.