Peters, C. C., & Van Voorhis, W. R. (1935). Statistical procedures and their mathematical bases. State College, Pa., School of education, the Pennsylvania state college.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPeters, Charles Clinton, और Walter Roe Van Voorhis. Statistical Procedures and Their Mathematical Bases. Pennsylvania: State College, Pa., School of education, the Pennsylvania state college, 1935.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPeters, Charles Clinton, और Walter Roe Van Voorhis. Statistical Procedures and Their Mathematical Bases. State College, Pa., School of education, the Pennsylvania state college, 1935.
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