APA (7th ed.) Citation

Flexner. (1971). How to increase your word power. Reader's Digest Association.

Chicago Style (17th ed.) Citation

Flexner. How to Increase Your Word Power. New York: Reader's Digest Association, 1971.

MLA (8th ed.) Citation

Flexner. How to Increase Your Word Power. Reader's Digest Association, 1971.

Warning: These citations may not always be 100% accurate.