APA-čujuhus (7. p.)

Freeman, H. (1965). Finite differences for acturial students (2nd.). Univ. Press.

Chicago-čujuhus (17. p.)

Freeman, Harry. Finite Differences for Acturial Students. 2nd. Cambridge: Univ. Press, 1965.

MLA-čujuhus (9. p.)

Freeman, Harry. Finite Differences for Acturial Students. 2nd. Univ. Press, 1965.

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