1. and , The SNOBOL4 Programming Language, 2nd. edn, Prentice-Hall, Englewood Cliffs, N.J., 1971.
2. String and List Processing in SNOBOL4: Techniques and Applications, Prentice-Hall, Englewood Cliffs, N.J., 1975, chps 2 and 7.
3. Additions to the SITBOL Implementation of SNOBOL4 to Facilitate Interactive Debugging, SNOBOL4 Project Document S4D51, The University of Arizona, Tucson, 1975.
4. The Macro Implementation of SNOBOL4, A Case Study of Machine-Independent Software Development, W. H. Freeman, San Francisco, 1972.
5. A Design for SNOBOL4 for the PDP-10, SNOBOL4 Project Document S4D29b, Bell Laboratories, Holmdel, N.J., 1973.