SILMAN, A. J. (1995). Epidemiological studies: A practical guide. Cambridge University Press.
Chicago-čujuhus (17. p.)SILMAN, Alan J. Epidemiological Studies: A Practical Guide. Cambridge: Cambridge University Press, 1995.
MLA-čujuhus (9. p.)SILMAN, Alan J. Epidemiological Studies: A Practical Guide. Cambridge University Press, 1995.
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