Chall, J. S., Jacobs, V. A., & Baldwin, L. E. (1991). The reading crisis: Why poor children fall behind (1st Harvard University Press pbk. ed.). Harvard University Press.

Chall, Jeanne S., Vicki A. Jacobs, and Luke E. Baldwin. The Reading Crisis: Why Poor Children Fall Behind. 1st Harvard University Press pbk. ed. Cambridge, Mass.: Harvard University Press, 1991.

Chall, Jeanne S., et al. The Reading Crisis: Why Poor Children Fall Behind. 1st Harvard University Press pbk. ed. Harvard University Press, 1991.