Gaya APA

Lewith, G, T. et al (2011). Clinical Research in Complementary Therapies : principles, problems and solutions (2nd Ed.). New York: Elsevier.

Gaya MLA

Lewith, George, T.. et al. "Clinical Research in Complementary Therapies : principles, problems and solutions". 2nd Ed. New York: Elsevier, 2011. Text.