PADI - professional diving instructors, dive centers, recreational facilities and events (note the open water PADI course is a part of the Ranger SCUBA elective)
"Aqua Expeditions: A Global Travel Guide for the Scuba Diver and Snorkeler", Heathcoat Publishing, 1995
"Scuba Diving", Dennis Graver, Human Kinetics, 1993
"Scuba Diving First Aid", National Safety Council, Jones & Bartlett Publishers, 1996
VIDEO TAPES
PADI Open Water Diving Video - VHS (Closed captioned) - You can view these materials at home, at your own pace and then meet with an instructor for further assistance.