Lua APA (7ú heag.)

Berrien, F. K. (1968). General and social systems. Rutgers University Press.

Lua i Stíl Chicago (17ú heag.)

Berrien, Frederick Kenneth. General and Social Systems. New Brunswick, N.J: Rutgers University Press, 1968.

Lua MLA (9ú heag.)

Berrien, Frederick Kenneth. General and Social Systems. Rutgers University Press, 1968.

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