Cita APA (7th ed.)

FREEMAN, H. (1960). Finite differences for actuarial students. University Press.

Cita Chicago (17th ed.)

FREEMAN, Harry. Finite Differences for Actuarial Students. Cambridge: University Press, 1960.

Cita MLA (9th ed.)

FREEMAN, Harry. Finite Differences for Actuarial Students. University Press, 1960.