International Business Machines Corporation. (1967). IBM System/360 Operating System: Sort/Merge: program number 360S-SM-023 (5th ed.). Internat. Business Mach. Corp..
Citace podle Chicago (17th ed.)International Business Machines Corporation. IBM System/360 Operating System: Sort/Merge: Program Number 360S-SM-023. 5th ed. N.Y.: Internat. Business Mach. Corp., 1967.
Citace podle MLA (8th ed.)International Business Machines Corporation. IBM System/360 Operating System: Sort/Merge: Program Number 360S-SM-023. 5th ed. Internat. Business Mach. Corp., 1967.
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