Cita APA (7th ed.)

Naps, T. L. (1982). COBOL: A comprehensive treatment. Reston Pub.

Cita Chicago (17th ed.)

Naps, Thomas L. COBOL: A Comprehensive Treatment. Reston, Virginia: Reston Pub, 1982.

Cita MLA (9th ed.)

Naps, Thomas L. COBOL: A Comprehensive Treatment. Reston Pub, 1982.