APA Citation

IBM. (1983). Information/System: Version 2 (1a. ed.). New York: IBM.

Chicago Style Citation

IBM. Information/System: Version 2. 1a. ed. New York: IBM, 1983.

MLA Citation

IBM. Information/System: Version 2. 1a. ed. New York: IBM, 1983.

Warning: These citations may not always be 100% accurate.