Hewitt, D. W. (1988). Longer Life, radiant health and dinamic living The easy way prevent cancer stroke heart attackes other diseases. Weimar.
Chicago-viite (17. p.)Hewitt, Donald W. Longer Life, Radiant Health and Dinamic Living The Easy Way Prevent Cancer Stroke Heart Attackes Other Diseases. Weimar, 1988.
MLA-viite (9. p.)Hewitt, Donald W. Longer Life, Radiant Health and Dinamic Living The Easy Way Prevent Cancer Stroke Heart Attackes Other Diseases. Weimar, 1988.
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