Macfadden, B. (1923). Vitality supreme. Physical Culture.
Lua i Stíl Chicago (17ú heag.)Macfadden, Bernarr. Vitality Supreme. New York: Physical Culture, 1923.
Lua MLA (9ú heag.)Macfadden, Bernarr. Vitality Supreme. Physical Culture, 1923.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.