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