APA (7th ed.) Citation

NetLibrary, Inc, Topping, K. J., & Ehly, S. W. (1998). Peer-assisted learning. L. Erlbaum Associates.

Chicago Style (17th ed.) Citation

NetLibrary, Inc, Keith J. Topping, and Stewart W. Ehly. Peer-assisted Learning. Mahwah, N.J.: L. Erlbaum Associates, 1998.

MLA (9th ed.) Citation

NetLibrary, Inc, et al. Peer-assisted Learning. L. Erlbaum Associates, 1998.