Não informado. (1911). Journal of the Institute of Actuaries Students Society. Institute of Actuaries Students Society.
Chicago-referens (17:e uppl.)Não informado. Journal of the Institute of Actuaries Students Society. Cambridge, Inglaterra: Institute of Actuaries Students Society, 1911.
MLA-referens (8:e uppl.)Não informado. Journal of the Institute of Actuaries Students Society. Institute of Actuaries Students Society, 1911.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.