APA (7th ed.) Citation

Vacca, R. T., & Vacca, J. A. L. (1993). Content area reading (4th ed.). HarperCollins College Publishers.

Chicago Style (17th ed.) Citation

Vacca, Richard T., and Jo Anne L. Vacca. Content Area Reading. 4th ed. New York: HarperCollins College Publishers, 1993.

MLA (9th ed.) Citation

Vacca, Richard T., and Jo Anne L. Vacca. Content Area Reading. 4th ed. HarperCollins College Publishers, 1993.