APA aipamena

Stern, N. B., & Stern, R. A. j. a. (1975). COBOL programming (2d ed.). Wiley.

Chicago Style aipamena

Stern, Nancy B., and Robert A. joint auth Stern. COBOL Programming. 2d ed. New York: Wiley, 1975.

MLA aipamena

Stern, Nancy B., and Robert A. joint auth Stern. COBOL Programming. 2d ed. Wiley, 1975.