Style de citation APA (7e éd.)
Williamson, E. G., Cowan, J. L., Crawford, R. G., & Willems, V. (1966). The American student's freedom of expression: A research appraisal. University of Minnesota Press.
Style de citation Chicago (17e éd.)
Williamson, E. G., John L. Cowan, R. George Crawford, et Virginia Willems. The American Student's Freedom of Expression: A Research Appraisal. Minneapolis: University of Minnesota Press, 1966.
Style de citation MLA (9e éd.)
Williamson, E. G., et al. The American Student's Freedom of Expression: A Research Appraisal. University of Minnesota Press, 1966.
Attention : ces citations peuvent ne pas être correctes à 100%.