APA Citatie

Stern, N. B. 1., & Stern, R. A. (2000). Student program and data disk to accompany Structured COBOL programming, 9/E: For the year 2000 and byeond (9th ed.). New York ; Chichester: John Wiley and Sons.

Chicago Style citaat

Stern, Nancy B. 1944-, en Robert A. Stern. Student Program and Data Disk to Accompany Structured COBOL Programming, 9/E: For the Year 2000 and Byeond. 9th ed. New York ; Chichester: John Wiley and Sons, 2000.

MLA citatie

Stern, Nancy B. 1944-, en Robert A. Stern. Student Program and Data Disk to Accompany Structured COBOL Programming, 9/E: For the Year 2000 and Byeond. 9th ed. New York ; Chichester: John Wiley and Sons, 2000.