Schakel, P. (1997). Approaching poetry: Perspectives and responses. St.Martin's.
Chicago Style (17th ed.) ZitazioaSchakel, Peter. Approaching Poetry: Perspectives and Responses. New York: St.Martin's, 1997.
MLA (9th ed.) ZitazioaSchakel, Peter. Approaching Poetry: Perspectives and Responses. St.Martin's, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.