Duffy Gerald G. (1989). Improving classroom reading instruction (2nd ed.). Random House.
Cita Chicago Style (17a ed.)Duffy Gerald G. Improving Classroom Reading Instruction. 2nd ed. New York: Random House, 1989.
Cita MLA (9a ed.)Duffy Gerald G. Improving Classroom Reading Instruction. 2nd ed. Random House, 1989.
Precaución: Estas citas no son 100% exactas.