Cross, p. b. T. A. R. Lifesaving rescue and water safety. The American National Red Cross.
Chicago-referens (17:e uppl.)Cross, prepared by The American Red. Lifesaving Rescue and Water Safety. The American National Red Cross.
MLA-referens (8:e uppl.)Cross, prepared by The American Red. Lifesaving Rescue and Water Safety. The American National Red Cross.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.