• Cognos_Object-Oriented_Programming_Smalltalk_Apr-May_1988.tif
• Cognos_Object-Oriented_Programming_Smalltalk_Generalization_Apr-May_1988.tif
• Cognos_Object-Oriented_Programming_Smalltalk-V_Managing_Object-Oriented_Programming_Apr-May_1988.tif
• Cognos_Object-Oriented_Programming_Smalltalk-V_Multiple_Representations_&_Subtyping_Apr-May_1988.tif
• Cognos_Object-Oriented_Programming_Smalltalk-V_OO_Design_Principles_and_Concepts_Apr-May_1988.tif
• If_I_Were_President_of_ParcPlace_(or_Digitalk)_Bill_Bourne.tif
• JOOP-contents-page-Apr-May-1988.tif