Cita APA (7th ed.)

McCracken, D. D. (1976). A simplified guide to structured COBOL programming. Wiley.

Cita Chicago (17th ed.)

McCracken, Daniel D. A Simplified Guide to Structured COBOL Programming. New York: Wiley, 1976.

Cita MLA (9th ed.)

McCracken, Daniel D. A Simplified Guide to Structured COBOL Programming. Wiley, 1976.