APA-Zitierstil (7. Ausg.)

Petit, M. M., Laird, R. E., Wyneken, M. F., & Huntoon, F. R. (2020). A focus on ratios and proportions: Bringing mathematics education research to the classroom. Routledge, Taylor & Francis Group.

Chicago-Zitierstil (17. Ausg.)

Petit, Marjorie M., Robert E. Laird, Matthew F. Wyneken, und Frances R. Huntoon. A Focus on Ratios and Proportions: Bringing Mathematics Education Research to the Classroom. New York: Routledge, Taylor & Francis Group, 2020.

MLA-Zitierstil (9. Ausg.)

Petit, Marjorie M., et al. A Focus on Ratios and Proportions: Bringing Mathematics Education Research to the Classroom. Routledge, Taylor & Francis Group, 2020.