Cita APA (7th ed.)

Heid, M. K., Wilson, P. S., & Blume, G. W. (2015). Mathematical understanding for secondary teaching: A framework and classroom-based situations. IAP, Information Age Publishing, Inc.

Cita Chicago (17th ed.)

Heid, Mary Kathleen, Patricia S. Wilson, i Glendon W. Blume. Mathematical Understanding for Secondary Teaching: A Framework and Classroom-based Situations. Charlotte, NC: IAP, Information Age Publishing, Inc, 2015.

Cita MLA (9th ed.)

Heid, Mary Kathleen, et al. Mathematical Understanding for Secondary Teaching: A Framework and Classroom-based Situations. IAP, Information Age Publishing, Inc, 2015.