APA (7th ed.) Citation

Richardson, K. (1991). Understanding intelligence / Ken Richardson. Open University Press.

Chicago Style (17th ed.) Citation

Richardson, Ken. Understanding Intelligence / Ken Richardson. Milton Keynes ; Philadelphia: Open University Press, 1991.

MLA (9th ed.) Citation

Richardson, Ken. Understanding Intelligence / Ken Richardson. Open University Press, 1991.

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