Helman, C. G. (2007). Culture, Health, and IIIness (5th ed.). CRC.
Chicago Style (17th ed.) ZitazioaHelman, Cecil G. Culture, Health, and IIIness. 5th ed. Boca Raton: CRC, 2007.
MLA (9th ed.) ZitazioaHelman, Cecil G. Culture, Health, and IIIness. 5th ed. CRC, 2007.
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