PDC 70 BOOK THE ESSENTIALS OF DEEPER SPORT DIVING

Essentials of Deeper Sport Diving

"This volume provides an excellent review of the wide variety of problem areas currently of concern for deeper diving...his coverage is thorough and comprehensive, and provides necessary detailed information...especially in the realm of deeper diving. Therefore, I highly recommend this excellent book to all divers."--Peter B. Bennett, Ph.D., Exec. Dir, Divers Alert Network