APA (7e ed.) Bronvermelding

Stern, N. B., & Stern, R. A. (1985). Structured COBOL programming: With COBOL 85 (4th ed.). John Wiley & Sons.

Chicago (17e ed.) Bronvermelding

Stern, Nancy B., en Robert A. Stern. Structured COBOL Programming: With COBOL 85. 4th ed. New York: John Wiley & Sons, 1985.

MLA (9e ed.) Bronvermelding

Stern, Nancy B., en Robert A. Stern. Structured COBOL Programming: With COBOL 85. 4th ed. John Wiley & Sons, 1985.