APA (7th ed.) Citation

Duffy, G. G., & Sherman, G. B. (1977). Systematic reading instruction (2d ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Duffy, Gerald G., and George B. Sherman. Systematic Reading Instruction. 2d ed. New York: Harper & Row, 1977.

MLA (9th ed.) Citation

Duffy, Gerald G., and George B. Sherman. Systematic Reading Instruction. 2d ed. Harper & Row, 1977.