Citazione Stile APA (7a Edizione)

Flesch, R. (1960). How to write, speak and think more effectively: Rudolf Flesch. New American Library.

Citazione stile Chigago Style (17a edizione)

Flesch, Rudolf. How to Write, Speak and Think More Effectively: Rudolf Flesch. New York: New American Library, 1960.

Citatione MLA (9a ed.)

Flesch, Rudolf. How to Write, Speak and Think More Effectively: Rudolf Flesch. New American Library, 1960.