APA (7th ed.) Citation

Krashin, R. A. (1973). How to improve your vision (1973.). Wilshire Book.

Chicago Style (17th ed.) Citation

Krashin, Robert A. How to Improve Your Vision. 1973. California: Wilshire Book, 1973.

MLA (9th ed.) Citation

Krashin, Robert A. How to Improve Your Vision. 1973. Wilshire Book, 1973.

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