Cita APA (7th ed.)
Blum, A. (2011). The grey zone of health and illness. Intellect.
Cita Chicago (17th ed.)
Blum, Alan. The Grey Zone of Health and Illness. Bristol [U.K.]: Intellect, 2011.
Cita MLA (9th ed.)
Blum, Alan. The Grey Zone of Health and Illness. Intellect, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.