APA (7th ed.) Zitazioa
Blum, A. (2011). The grey zone of health and illness. Intellect.
Chicago Style (17th ed.) Zitazioa
Blum, Alan. The Grey Zone of Health and Illness. Bristol [U.K.]: Intellect, 2011.
MLA (9th ed.) Zitazioa
Blum, Alan. The Grey Zone of Health and Illness. Intellect, 2011.
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