Spets, Sammy. Programming Drupal 7 Entities - Packt Publishing 2013 ISBN: 9781782166535 Subjects--Topical Terms: Web site development.,Web sites--Authoring programs. Subjects--Index Terms: COMPUTERS / Internet / User-Generated Content LC Class. No.: TK5105.8885.D78 Dewey Class. No.: 006.7/8