APA (7th ed.) Citation

Gill, P., Marrin, S., & Phythian, M. (2009). Intelligence theory: Key questions and debates. Routledge.

Chicago Style (17th ed.) Citation

Gill, Peter, Stephen Marrin, and Mark Phythian. Intelligence Theory: Key Questions and Debates. London;New York: Routledge, 2009.

MLA (9th ed.) Citation

Gill, Peter, et al. Intelligence Theory: Key Questions and Debates. Routledge, 2009.