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