APA (7th ed.) Citation

Williamson, E. G., & Cowan, J. L. (1969). The American student's freedom of expression: A research appraisal. University of Minnesota Press.

Chicago Style (17th ed.) Citation

Williamson, E. G., and John L. Cowan. The American Student's Freedom of Expression: A Research Appraisal. Minneapolis: University of Minnesota Press, 1969.

MLA (9th ed.) Citation

Williamson, E. G., and John L. Cowan. The American Student's Freedom of Expression: A Research Appraisal. University of Minnesota Press, 1969.