SmallTalk 80: The Language by Goldberg, Adele; Robson, David

Z-80 Assembly Language Programming by Lance Leventhal

SmallTalk 80:The Language by Adele Goldberg & David Robson 1989 Trade Paperback

A Biography of the Pixel (Leonardo) - Paperback, by Smith Alvy Ray - Very Good

Sybex Programming the 6502 Third Edition Rodnay Zaks Vintage Computer Book 1980

The C Programming Language - Paperback, by Kernighan Ritchie - Acceptable

Smalltalk-80: The Interactive Programming Environment by Goldberg

Computer Programming in BASIC by Peter Bishop. Hardback former library book