Schumacher, E. F. (1979). Good work. Harper and Row.
Chicago Style (17th ed.) ZitazioaSchumacher, E. F. Good Work. New York: Harper and Row, 1979.
MLA (9th ed.) ZitazioaSchumacher, E. F. Good Work. Harper and Row, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.