Goldberg Adele. Smalltalk-72: Instruction Manual

Xerox, 1976. — 136p.The Smalltalk system described here was designed in the summer of 1972 and first conversed haltingly with a user late that fall. It was released for more general use at the Xerox Palo Alto Research Center (PARe) in the spring of 1973 when the first "Interim Dynabook" became available.