APA (7th ed.) Citation

Carter, P. J., & Russell, K. A. (1990). Take the IQ & Challenge. Blandford.

Chicago Style (17th ed.) Citation

Carter, Philip J., and Ken A. Russell. Take the IQ & Challenge. London: Blandford, 1990.

MLA (9th ed.) Citation

Carter, Philip J., and Ken A. Russell. Take the IQ & Challenge. Blandford, 1990.

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