One view is that possessing certain certifications (usually Advanced Lifesaving, Lifeguard- ing, CPR, or first aid) is adequate ... Exam. At this point, and especially in cases with large numbers of applicants, some sponsors require a written test.
|Title||:||Professional aquatic management|
|Author||:||Robert D. Clayton, David G. Thomas|
|Publisher||:||Human Kinetics - 1989-04-01|