Basics - Theory for Scuba Divers

Viac o knihe

A related to practice IDA textbook for diving beginners. In this book, the author has summarized all of the theoretical content needed to gain the Open Water Diver or the Diver * within the CMAS and R. S. T. C. system. The book contains several QR codes, which you can call up via mobile phone to see short educational films from the Internet.