Cita APA (7a ed.)
Fenton, J. P., & Williams, B. K. (1988). Structured COBOL: Programming and problem solving (1.ed.). Times Mirror/Mosby College Publishing.
Cita Chicago Style (17a ed.)
Fenton, J. Patrick, y Brian K. Williams. Structured COBOL: Programming and Problem Solving. 1.ed. St.Louis: Times Mirror/Mosby College Publishing, 1988.
Cita MLA (9a ed.)
Fenton, J. Patrick, y Brian K. Williams. Structured COBOL: Programming and Problem Solving. 1.ed. Times Mirror/Mosby College Publishing, 1988.
Precaución: Estas citas no son 100% exactas.