Finney, H. A. (1920). Introduction to actuarial science. American institute of accountants.
Dyfyniad Arddull ChicagoFinney, H. A. Introduction to Actuarial Science. New York: American institute of accountants, 1920.
Dyfyniad MLAFinney, H. A. Introduction to Actuarial Science. American institute of accountants, 1920.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.