Cita APA

Shelly, G. B., Cashman, T. J., & Foreman, R. O. (1996). Structured COBOL programming. Danvers, Mass.: International Thomson pub..

Citación estilo Chicago

Shelly, Gary B., Thomas J. Cashman, y Roy O. Foreman. Structured COBOL Programming. Danvers, Mass.: International Thomson pub., 1996.

Cita MLA

Shelly, Gary B., Thomas J. Cashman, y Roy O. Foreman. Structured COBOL Programming. Danvers, Mass.: International Thomson pub., 1996.