Island Data Management: Programming 4th Dimension - Programming 4th Dimension The Ultimate Guide, by David Adams and Dan Beckett, is for anyone who wants to get the most out of 4D. www.island-data.com/products/program4D
Le Guide 4D v6.7 Expert - French advanced book dedicated to 4D v6.7 www.e-node.com/products/G4D67Expert_ENG
Le Guide 4D v6.7 Initiation - French beginners book dedicated to 4D v6.7 e-node.com/products/G4D67Initiation_ENG
