APA (7th ed.) Citation

Wallen, N. E., & Fraenkel, J. R. (1991). Educational research: A guide to the processs. McGraw-Hill.

Chicago Style (17th ed.) Citation

Wallen, Norman E., and Jack R. Fraenkel. Educational Research: A Guide to the Processs. New York: McGraw-Hill, 1991.

MLA (9th ed.) Citation

Wallen, Norman E., and Jack R. Fraenkel. Educational Research: A Guide to the Processs. McGraw-Hill, 1991.