APA (7th ed.) Citation

Hixson, N. K., Ravitz, J., & Whisman, A. (2012). Extended Professional Development in Project-Based Learning: Impacts on 21st Century Skills Teaching and Student Achievement.

Chicago Style (17th ed.) Citation

Hixson, Nate K., Jason Ravitz, and Andy Whisman. Extended Professional Development in Project-Based Learning: Impacts on 21st Century Skills Teaching and Student Achievement. 2012.

MLA (9th ed.) Citation

Hixson, Nate K., et al. Extended Professional Development in Project-Based Learning: Impacts on 21st Century Skills Teaching and Student Achievement. 2012.