Παραπομπή σε μορφή APA (7η εκδ.)

Fenton, J. P., & Williams, B. K. (1988). Structured COBOL: Programming and problem solving. Times Mirror/Mosby College Pub.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Fenton, J. Patrick, και Brian K. Williams. Structured COBOL: Programming and Problem Solving. St. Louis: Times Mirror/Mosby College Pub, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

Fenton, J. Patrick, και Brian K. Williams. Structured COBOL: Programming and Problem Solving. Times Mirror/Mosby College Pub, 1988.