APA (7th ed.) Citation

Flesch, R. F. (1962). The art of plain talk. Collier Books.

Chicago Style (17th ed.) Citation

Flesch, Rudolf Franz. The Art of Plain Talk. New York and London: Collier Books, 1962.

MLA (9th ed.) Citation

Flesch, Rudolf Franz. The Art of Plain Talk. Collier Books, 1962.