Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.