APA (7th ed.) Citation

Flesch, R. (1943). Marks of readable style: A study in adult education. Teachers college, Columbia university.

Chicago Style (17th ed.) Citation

Flesch, Rudolf. Marks of Readable Style: A Study in Adult Education. New York: Teachers college, Columbia university, 1943.

MLA (9th ed.) Citation

Flesch, Rudolf. Marks of Readable Style: A Study in Adult Education. Teachers college, Columbia university, 1943.