APA (7th ed.) Citation

Rottier, J., & Ogan, B. J. (1991). Cooperative learning in middle-level schools. NEA Professional Library, National Education Association.

Chicago Style (17th ed.) Citation

Rottier, Jerry, and Beverly J. Ogan. Cooperative Learning in Middle-level Schools. Washington, D.C.: NEA Professional Library, National Education Association, 1991.

MLA (8th ed.) Citation

Rottier, Jerry, and Beverly J. Ogan. Cooperative Learning in Middle-level Schools. NEA Professional Library, National Education Association, 1991.