Wortberg, W. (2015). Do I have an environmental disease?: Recognition and prevention of the causes of cancer and chronic diseases : case studies and investigations from a general and environmental physician's practice, with new diagnostic and therapeutic approaches. PL Academic Research.
Cytowanie według stylu Chicago (wyd. 17)Wortberg, Walter. Do I Have an Environmental Disease?: Recognition and Prevention of the Causes of Cancer and Chronic Diseases : Case Studies and Investigations from a General and Environmental Physician's Practice, with New Diagnostic and Therapeutic Approaches. Wiesbaden, [Germany]: PL Academic Research, 2015.
Cytowanie według stylu MLA (wyd. 9)Wortberg, Walter. Do I Have an Environmental Disease?: Recognition and Prevention of the Causes of Cancer and Chronic Diseases : Case Studies and Investigations from a General and Environmental Physician's Practice, with New Diagnostic and Therapeutic Approaches. PL Academic Research, 2015.