APA (7th ed.) Citation

National Science Teachers Association, Penick, J. E., & Krajcik, J. S. (1985). Middle school/junior high science. National Science Teachers Association.

Chicago Style (17th ed.) Citation

National Science Teachers Association, John E. Penick, and Joseph S. Krajcik. Middle School/junior High Science. Washington, D.C.: National Science Teachers Association, 1985.

MLA (9th ed.) Citation

National Science Teachers Association, et al. Middle School/junior High Science. National Science Teachers Association, 1985.