Ryan, T. P. (2000). Statistical methods for quality improvement/2nd ed (2nd ed.). John Wiley & Sons.
Čikaški stil citiranjaRyan, Thomas P. Statistical Methods for Quality Improvement/2nd Ed. 2nd ed. New York: John Wiley & Sons, 2000.
MLA način citiranjaRyan, Thomas P. Statistical Methods for Quality Improvement/2nd Ed. 2nd ed. John Wiley & Sons, 2000.
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