APA (7th ed.) Citation

Gregory, R. L. (1970). The intelligent eye. McGraw-Hill Book.

Chicago Style (17th ed.) Citation

Gregory, R. L. The Intelligent Eye. New York: McGraw-Hill Book, 1970.

MLA (8th ed.) Citation

Gregory, R. L. The Intelligent Eye. McGraw-Hill Book, 1970.

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