APA (7th ed.) Citation

Smith, J. W. A., & Elley, W. B. (1997). How children learn to write. PCP.

Chicago Style (17th ed.) Citation

Smith, John W. A., and Warwick B. Elley. How Children Learn to Write. Liverpool: PCP, 1997.

MLA (8th ed.) Citation

Smith, John W. A., and Warwick B. Elley. How Children Learn to Write. PCP, 1997.