Cita APA (7a ed.)

Boillot, M. (1986). Understanding structured COBOL (2nd ed.). West Pub..

Cita Chicago Style (17a ed.)

Boillot, Michel. Understanding Structured COBOL. 2nd ed. St. Paul: West Pub., 1986.

Cita MLA (8a ed.)

Boillot, Michel. Understanding Structured COBOL. 2nd ed. West Pub., 1986.