APA引文

Freeman, H. (1962). Finite differences for acturial students (2nd.). Univ. Press.

Chicago Style (17th ed.) Citation

Freeman, Harry. Finite Differences for Acturial Students. 2nd. Cambridge: Univ. Press, 1962.

MLA引文

Freeman, Harry. Finite Differences for Acturial Students. 2nd. Univ. Press, 1962.

警告：這些引文格式不一定是100％准確.