APA (7th ed.) Citation

Hobart, M. E., & Schiffman, Z. S. (1998). Information ages: Literacy, numeracy, and the computer revolution. The Johns Hopkins University.

Chicago Style (17th ed.) Citation

Hobart, Michael E., and Zachary Sayre Schiffman. Information Ages: Literacy, Numeracy, and the Computer Revolution. Baltimore [Md.][etc.]: The Johns Hopkins University, 1998.

MLA (9th ed.) Citation

Hobart, Michael E., and Zachary Sayre Schiffman. Information Ages: Literacy, Numeracy, and the Computer Revolution. The Johns Hopkins University, 1998.