Cita APA (7th ed.)

Molluzzo, J. C. (1987). Structured COBOL programming. Wadsworth.

Cita Chicago (17th ed.)

Molluzzo, John C. Structured COBOL Programming. Belmont, Calif: Wadsworth, 1987.

Cita MLA (9th ed.)

Molluzzo, John C. Structured COBOL Programming. Wadsworth, 1987.