Ohio Council of Teachers of Mathematics. (1977). Ohio journal of school mathematics. Ohio Council of Teachers of Mathematics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOhio Council of Teachers of Mathematics. Ohio Journal of School Mathematics. Oxford, Ohio: Ohio Council of Teachers of Mathematics, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOhio Council of Teachers of Mathematics. Ohio Journal of School Mathematics. Ohio Council of Teachers of Mathematics, 1977.
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