APA (7th ed.) Citation

Cooper, P., Smith, C., & Upton, G. (1994). Emotional and behavioural difficulties: Theory to practice. Routledge.

Chicago Style (17th ed.) Citation

Cooper, Paul, Colin Smith, and Graham Upton. Emotional and Behavioural Difficulties: Theory to Practice. London ; New York: Routledge, 1994.

MLA (8th ed.) Citation

Cooper, Paul, et al. Emotional and Behavioural Difficulties: Theory to Practice. Routledge, 1994.