Kail, R. V., & Hagen, J. W. (1977). Perspectives on the development of memory and cognition. L. Erlbaum Associates ; distributed by the Halsted Press Division of J. Wiley.

Kail, Robert V., and John W. Hagen. Perspectives on the Development of Memory and Cognition. Hillsdale, N.J. : New York: L. Erlbaum Associates ; distributed by the Halsted Press Division of J. Wiley, 1977.

Kail, Robert V., and John W. Hagen. Perspectives on the Development of Memory and Cognition. L. Erlbaum Associates ; distributed by the Halsted Press Division of J. Wiley, 1977.