APA (7th ed.) Citation

Page, R., Clarke, R., & Poole, J. (1982). Problem solving. Oliver & Boyd in association with the National Centre for School Technology.

Chicago Style (17th ed.) Citation

Page, Ray, Roland Clarke, and John Poole. Problem Solving. Edinburgh: Oliver & Boyd in association with the National Centre for School Technology, 1982.

MLA (8th ed.) Citation

Page, Ray, et al. Problem Solving. Oliver & Boyd in association with the National Centre for School Technology, 1982.