Blitghingyon, W. P. (1981). The energy and vitality book. Living Books.
Chicago Style aipamenaBlitghingyon, W. Peter. The Energy and Vitality Book. Living Books, 1981.
MLA aipamenaBlitghingyon, W. Peter. The Energy and Vitality Book. Living Books, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.