海量图书期刊资源，随时随地畅享阅读乐趣
WITH PROFITS WITHOUT MYSTERY [with DISCUSSION]R. H. Ranson and C. P. Headdon · Transactions of the Faculty of Actuaries · 1989-1990
With profits without mysteryR.H. Ranson; C.P. Headdon · 1993
With profits without mysteryRanson, R. H.; Headdon, C. P. · Journal of the Institute of Actuaries · 1989