Cita APA (7a ed.)

Williamson, E. G. (1966). The American Student's Freedom of Expression: A Research Appraisal. University of Minnesota Press.

Cita Chicago Style (17a ed.)

Williamson, E. G. The American Student's Freedom of Expression: A Research Appraisal. Minneapolis: University of Minnesota Press, 1966.

Cita MLA (8a ed.)

Williamson, E. G. The American Student's Freedom of Expression: A Research Appraisal. University of Minnesota Press, 1966.