Walker, B. R., & Ralston, S. H. (2010). Davidson's Principles and Practice of Medicine (21st ed.). Elsevier.
Chicago-čujuhus (17. p.)Walker, Brian R., juo Stuart H. Ralston. Davidson's Principles and Practice of Medicine. 21st ed. London: Elsevier, 2010.
MLA-čujuhus (9. p.)Walker, Brian R., juo Stuart H. Ralston. Davidson's Principles and Practice of Medicine. 21st ed. Elsevier, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.