APA (7th ed.) Citation

Callahan, J. F., Clark, L. H., & Kellough, R. D. (1998). Teaching in the middle and secondary schools (6. ed.). Merrill.

Chicago Style (17th ed.) Citation

Callahan, Joseph F., Leonard H. Clark, and Richard D. Kellough. Teaching in the Middle and Secondary Schools. 6. ed. Upper Saddle River, N.J. [u.a.]: Merrill, 1998.

MLA (9th ed.) Citation

Callahan, Joseph F., et al. Teaching in the Middle and Secondary Schools. 6. ed. Merrill, 1998.