Freeman, H. (1962). Finite differences for acturial students (2nd.). Univ. Press.
Chicagoスタイル(17版)引用形式Freeman, Harry. Finite Differences for Acturial Students. 2nd. Cambridge: Univ. Press, 1962.
MLA(9版)引用形式Freeman, Harry. Finite Differences for Acturial Students. 2nd. Univ. Press, 1962.
警告: この引用は必ずしも正確ではありません.