APA (7th ed.) Citation

Custable, W., Reibel, A. R., & Twadell, E. (2019). Proficiency-based grading in the content areas: Insights and key questions for secondary schools. Solution Tree Press.

Chicago Style (17th ed.) Citation

Custable, Wendy, Anthony R. Reibel, and Eric Twadell. Proficiency-based Grading in the Content Areas: Insights and Key Questions for Secondary Schools. Bloomington, Indiana: Solution Tree Press, 2019.

MLA (9th ed.) Citation

Custable, Wendy, et al. Proficiency-based Grading in the Content Areas: Insights and Key Questions for Secondary Schools. Solution Tree Press, 2019.