Não informado. (2001). Strength and health. Strength & Health Publishing.
Chicago-referens (17:e uppl.)Não informado. Strength and Health. New York: Strength & Health Publishing, 2001.
MLA-referens (8:e uppl.)Não informado. Strength and Health. Strength & Health Publishing, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.