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References
- ↑ Sebesta, R. W. Concepts of Programming languages. 2006; M6 14:18 pp. 44. ISBN 0-321-33025-0.
- ↑ Sebesta, R. W. Concepts of Programming languages. 11E; Chapter 2, pp. 39. ISBN 978-0133943023.
- ↑ Schmitt, William F. The UNIVAC SHORT CODE. Annals of the History of Computing (1988) 10:pages 7–8.
- ↑ Schmitt, William F. The UNIVAC SHORT CODE. Annals of the History of Computing (1988) 10:page 15.
- ↑ Malik, Masud Ahmad. Evolution of the High Level Programming Languages: A Critical Perspective. ACM SIGPLAN Notices (December 1998) 33(12) page 74.