Citazione Stile APA (7a Edizione)

Vernon, M. D. (1971). Reading and its difficulties: A psychological study. C.U.pr..

Citazione stile Chigago Style (17a edizione)

Vernon, M. D. Reading and Its Difficulties: A Psychological Study. Cambridge: C.U.pr., 1971.

Citatione MLA (9a ed.)

Vernon, M. D. Reading and Its Difficulties: A Psychological Study. C.U.pr., 1971.