Cita APA (7th ed.)

Flesch, R. F. (1974). The art of readable writing: With the Flesch readability formula (25th anniversary ed., rev. and enl.). Harper & Row.

Cita Chicago (17th ed.)

Flesch, Rudolf Franz. The Art of Readable Writing: With the Flesch Readability Formula. 25th anniversary ed., rev. and enl. New York: Harper & Row, 1974.

Cita MLA (9th ed.)

Flesch, Rudolf Franz. The Art of Readable Writing: With the Flesch Readability Formula. 25th anniversary ed., rev. and enl. Harper & Row, 1974.