MLA

Hobart, Michael E, and Zachary S Schiffman. Information Ages : Literacy, Numeracy, and the Computer Revolution. Baltimore; London: The John Hopkins University Press, 2000.

APA

Hobart, M. E, & Schiffman, Z. S. (2000). Information Ages : Literacy, Numeracy, and the Computer Revolution. Baltimore; London: The John Hopkins University Press.

Chicago

Hobart, Michael E., and Zachary S Schiffman. Information Ages: Literacy, Numeracy, and the Computer Revolution. Baltimore; London: The John Hopkins University Press, 2000.