Flesch, R. F. (1962). The art of readable writing (1st Collier Books ed.). Collier Books.
Cita Chicago (17th ed.)Flesch, Rudolf Franz. The Art of Readable Writing. 1st Collier Books ed. New York: Collier Books, 1962.
Cita MLA (9th ed.)Flesch, Rudolf Franz. The Art of Readable Writing. 1st Collier Books ed. Collier Books, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.