APA (7th ed.) Citation

Lajoie, S., & Derry, S. J. (1993). Computers as cognitive tools. Lawrence Erlbaum.

Chicago Style (17th ed.) Citation

Lajoie, Susanne, and Sharon J. Derry. Computers as Cognitive Tools. Hillsdale: Lawrence Erlbaum, 1993.

MLA (9th ed.) Citation

Lajoie, Susanne, and Sharon J. Derry. Computers as Cognitive Tools. Lawrence Erlbaum, 1993.