Berkow, R. (1992). The Merck manual of diagnosis and therapy. Merck Research Laboratories.
Chicago-viite (17. p.)Berkow, Robert. The Merck Manual of Diagnosis and Therapy. Rahway, NJ: Merck Research Laboratories, 1992.
MLA-viite (9. p.)Berkow, Robert. The Merck Manual of Diagnosis and Therapy. Merck Research Laboratories, 1992.
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