Abstract
Get full access to this article
View all access options for this article.
References
1.American Red Cross (1990 ). American Red Cross Lifeguarding Instructor's Manual , Washington, D.C. : Author .
2.American Red Cross (1990 ). Health and Safety Notice #68 , Washington, D.C. : Author .
3.American Red Cross (1990 ). Health and Safety #69 , Washington, D.C. : Author .