APA (7th ed.) Citation

Garet, M. S., & u.a. (2001). What makes professional development effective?: Results from a national sample of teachers. American educational research journal, 38(4), 915-945. https://doi.org/10.3102/00028312038004915

Chicago Style (17th ed.) Citation

Garet, Michael S., and u.a. "What Makes Professional Development Effective?: Results from a National Sample of Teachers." American Educational Research Journal 38, no. 4 (2001): 915-945. https://doi.org/10.3102/00028312038004915.

MLA (9th ed.) Citation

Garet, Michael S., and u.a. "What Makes Professional Development Effective?: Results from a National Sample of Teachers." American Educational Research Journal, vol. 38, no. 4, 2001, pp. 915-945, https://doi.org/10.3102/00028312038004915.