12489 Richard Gabriel/Jon White/Daniel Bobrow: CLOS - integrating
object-oriented and functional programming. Comm. ACM 1991/9, 28-38.

Sonya Keene: Object-oriented programming in Common Lisp.
A programmer's guide to CLOS.
Addison-Wesley 1989, 270p. 0-201-17589-4. DM 61.

Robert Kessler/Amy Petajan: Lisp, objects, and symbolic programming.
Scott and Foresman 1988, 650p.

Gregor Kiczales/Jim des Rivieres/Daniel Bobrow: The art of the metaobject
protocol. MIT Press 1991, 335p. 0-262-61074-4. $35.
"The first part of the book presents a model CLOS-implementation,
introduces the basic principles of metaobject protocols, and works
through the key elements of the CLOS Metaobject Protocol. The second
half is the detailed specification of the CLOS Metaobject Protocol."
(Kantrowitz/Margolin)

Jo Lawless/Molly Miller: Understanding CLOS. The Common Lisp Object System.
Digital Press 1991, 190p.

Slade: Object-oriented Common Lisp. Prentice-Hall 1998. 0-13-605940-6.
"Slade's book is probably the best book available on actually using
a Common Lisp environment for something other than AI programming."
(D. Lamkins)