Beer, M. (1966). An Inquiry into physiocracy. Russell and Russell.
Chicago Style (17th ed.) ZitazioaBeer, M. An Inquiry into Physiocracy. New York: Russell and Russell, 1966.
MLA (9th ed.) ZitazioaBeer, M. An Inquiry into Physiocracy. Russell and Russell, 1966.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.