APA (7e ed.) Bronvermelding

Witzel, B. S., & Little, M. E. (2016). Teaching elementary mathematics to struggling learners. The Guilford Press.

Chicago (17e ed.) Bronvermelding

Witzel, Bradley S., en Mary E. Little. Teaching Elementary Mathematics to Struggling Learners. New York, London: The Guilford Press, 2016.

MLA (9e ed.) Bronvermelding

Witzel, Bradley S., en Mary E. Little. Teaching Elementary Mathematics to Struggling Learners. The Guilford Press, 2016.