Gaya APA

KASPER, D, L. (2005). HARRISON'S PRINCIPLES INTERNAL MEDICINE (EDISI 16 VOL. II). USA: Mc Graw Hill Medical.

Gaya MLA

KASPER, Dennis, L. "HARRISON'S PRINCIPLES INTERNAL MEDICINE". EDISI 16 VOL. II USA: Mc Graw Hill Medical, 2005. Text.