Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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