Freeman, H. (1962). Finite differences for acturial students (2nd.). Univ. Press.
Chicago Style (17. basım) AtıfFreeman, Harry. Finite Differences for Acturial Students. 2nd. Cambridge: Univ. Press, 1962.
MLA (9th ed.) AtıfFreeman, Harry. Finite Differences for Acturial Students. 2nd. Univ. Press, 1962.
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