Não informado. (1969). Journal of Undergraduate Mathematics. Guilford College, Department of Mathematics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Undergraduate Mathematics. Greensboro, NC: Guilford College, Department of Mathematics, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of Undergraduate Mathematics. Guilford College, Department of Mathematics, 1969.
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