[LISP1.5] John McCarthy et al. LISP 1.5 Programmer's Manual 2nd ed The M.I.T. Press, Massachussets Institute of Technology, 1985. Available at the Computer History Museum Communities Site
[ANSI] ANSI Common Lisp Specification, ANSI/X3.226-1994. American National Standards Institute, 1994.
[CLHS] Kent M. Pitman. The Common Lisp Hyperspec. Lispworks, 1996. Available in the Lispworks homepage.
[KCL] Taichi Yuasa and Masami Hagiya. Kyoto Common Lisp Report. Research Institute for Mathematical Sciences, Kyoto University, 1988.
[mk-defsystem] Mark Kantrowitz, Portable Utilities for Common Lisp. User Guide & Implementation. Cargnegie Mellon University, 1991. Available in the CMU repository