APA (7th ed.) Zitazioa
Duffy Gerald G. (1989). Improving classroom reading instruction (2nd ed.). Random House.
Chicago Style (17th ed.) Zitazioa
Duffy Gerald G. Improving Classroom Reading Instruction. 2nd ed. New York: Random House, 1989.
MLA (9th ed.) Zitazioa
Duffy Gerald G. Improving Classroom Reading Instruction. 2nd ed. Random House, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.