Lua APA (7ú heag.)

Black, K. (1955). Group annuities. University of Pennsylvania Press.

Lua i Stíl Chicago (17ú heag.)

Black, Kenneth. Group Annuities. Philadelphia: University of Pennsylvania Press, 1955.

Lua MLA (8ú heag.)

Black, Kenneth. Group Annuities. University of Pennsylvania Press, 1955.

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