Freeman, H. (1965). Finite differences for acturial students (2nd.). Univ. Press.
Chicago Style (17th ed.) CitationFreeman, Harry. Finite Differences for Acturial Students. 2nd. Cambridge: Univ. Press, 1965.
MLA (9th ed.) CitationFreeman, Harry. Finite Differences for Acturial Students. 2nd. Univ. Press, 1965.
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