Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL "De Morgan, Augustus","An essay of probabilities, and on their application to life contingencies and insurance offices",,"Printed for Longman, Orme, Brown, Green & Longmans : John Taylor",1838,The Cabinet cyclopædia,,,,https://cir.nii.ac.jp/crid/1130282272271946880