Beshers, J. M. (1967). Population processes in social systems. Free Press.
Chicago Style (17th ed.) ZitazioaBeshers, James M. Population Processes in Social Systems. New York: Free Press, 1967.
MLA (9th ed.) ZitazioaBeshers, James M. Population Processes in Social Systems. Free Press, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.