Walker, B. R., & Ralston, S. H. (2010). Davidson's Principles and Practice of Medicine (21st ed.). Elsevier.
Chicago Style (17th ed.) CitationWalker, Brian R., and Stuart H. Ralston. Davidson's Principles and Practice of Medicine. 21st ed. London: Elsevier, 2010.
ציטוט MLAWalker, Brian R., and Stuart H. Ralston. Davidson's Principles and Practice of Medicine. 21st ed. Elsevier, 2010.
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