Object-oriented Programming with Smalltalk Wertz Hardback ISTE Press - Elsevier

Smalltalk 80: The Interactive Programming Environment by Goldberg Hardback Book

Object-Oriented Programming C++ Smalltalk - Begg Prentice Hall - Used Good

OBJECTORIENTED PROGRAMMING WITH ABAP OBJ by BOGGESS, JEFFREY Hardback Self Help

Object-Oriented Programming with C++ and SmallTalk by Drake, Caleb

Smalltalk-80: The Language and its Implementation

Object-Oriented Programming With C++ and Smalltalk by Caleb Drake

ObjectOriented Programming with ABAP Objects by Jeffrey Boggess HARDBACK