Cohen, R. (2008). Theatre (8th ed.). McGraw Hill.
Chicago Style (17th ed.) ZitazioaCohen, Robert. Theatre. 8th ed. New York: McGraw Hill, 2008.
MLA (9th ed.) ZitazioaCohen, Robert. Theatre. 8th ed. McGraw Hill, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.