APA (7th ed.) Citation

Gregory, R. L. (1970). The intelligent eye. Weidenfeld and Nicolson.

Chicago Style (17th ed.) Citation

Gregory, Richard Langton. The Intelligent Eye. Londres: Weidenfeld and Nicolson, 1970.

MLA (9th ed.) Citation

Gregory, Richard Langton. The Intelligent Eye. Weidenfeld and Nicolson, 1970.