Não informado. (1911). Journal of the Institute of Actuaries Students Society. Institute of Actuaries Students Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Institute of Actuaries Students Society. Cambridge, Inglaterra: Institute of Actuaries Students Society, 1911.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Institute of Actuaries Students Society. Institute of Actuaries Students Society, 1911.
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