Não informado. (1969). Mathematical Chronicle. University of Auckland, Department of Mathematics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Mathematical Chronicle. Auckland, Nova Zelandia: University of Auckland, Department of Mathematics, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Mathematical Chronicle. University of Auckland, Department of Mathematics, 1969.
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