APA (7th ed.) Citation

GibblhJohn W & Kramer. AutoCAD VBA programming: Tools and techniques.

Chicago Style (17th ed.) Citation

GibblhJohn W and Kramer. AutoCAD VBA Programming: Tools and Techniques. San FranciscolbMiller Freeman Bookslc1999.

MLA (9th ed.) Citation

GibblhJohn W and Kramer. AutoCAD VBA Programming: Tools and Techniques.

Warning: These citations may not always be 100% accurate.