Singley, M. K., & Anderson, J. R. (1989). The transfer of cognitive skill (1a. ed.). Harvard University Press.

Singley, Mark K., and John R. Anderson. The Transfer of Cognitive Skill. 1a. ed. Cambridge: Harvard University Press, 1989.

Singley, Mark K., and John R. Anderson. The Transfer of Cognitive Skill. 1a. ed. Harvard University Press, 1989.