Bobrow, E. C. and Bobrow, D. G. (eds). The Programming Language LISP: Its Operations and Applications, Vol. II; Berkeley, MIT Press, Cambridge, Mass. 1969.

• Guzmán, A. and McIntosh, H.V. (1969) Guzmán, A. and McIntosh, H.V. "Patterns and Skeletons in CONVERT"