APA (7th ed.) Citation

Gregory, R. L. (1970). The Intelligent eye / R.L. Gregory. Weidenfeld & Nicolson.

Chicago Style (17th ed.) Citation

Gregory, R. L. The Intelligent Eye / R.L. Gregory. London: Weidenfeld & Nicolson, 1970.

MLA (9th ed.) Citation

Gregory, R. L. The Intelligent Eye / R.L. Gregory. Weidenfeld & Nicolson, 1970.

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