APA (7th ed.) Citation

Wheldall, K., Houghton, S., & Merret, F. (1989). Positive teaching in the secondary school. Chapman.

Chicago Style (17th ed.) Citation

Wheldall, Kevin, Stephen Houghton, and Frank Merret. Positive Teaching in the Secondary School. London: Chapman, 1989.

MLA (9th ed.) Citation

Wheldall, Kevin, et al. Positive Teaching in the Secondary School. Chapman, 1989.