APA-Zitierstil (7. Ausg.)

Duffy Gerald G. (1989). Improving classroom reading instruction (2nd ed.). Random House.

Chicago-Zitierstil (17. Ausg.)

Duffy Gerald G. Improving Classroom Reading Instruction. 2nd ed. New York: Random House, 1989.

MLA-Zitierstil (9. Ausg.)

Duffy Gerald G. Improving Classroom Reading Instruction. 2nd ed. Random House, 1989.