APA (7th ed.) Citation

Ruthven, K. (1989). The Maths factory: A resource book for teachers. Cambridge University Press.

Chicago Style (17th ed.) Citation

Ruthven, Kenneth. The Maths Factory: A Resource Book for Teachers. Cambridge: Cambridge University Press, 1989.

MLA (9th ed.) Citation

Ruthven, Kenneth. The Maths Factory: A Resource Book for Teachers. Cambridge University Press, 1989.