Leach, C. (1979). Introduction to statistics: A nonparametric approach for the social sciences. John Wiley and Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLeach, Chris. Introduction to Statistics: A Nonparametric Approach for the Social Sciences. John Wiley and Sons, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLeach, Chris. Introduction to Statistics: A Nonparametric Approach for the Social Sciences. John Wiley and Sons, 1979.
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