@book{20936,
	author = {Cooper, Robert Wayne},
	title = {An historical analysis of the tontine principle},
	publisher = {S. S. Huebner Foundation for Insurance Education, University of Pennsylvania; distributed by R. D. Irwin, Homewood, Ill.},
	year = {[c1972]},
	series = {S.S. Huebner Foundation monograph series},
	address = {Philadelphia}
}