Παραπομπή σε μορφή APA (7η εκδ.)

Lehrer, R., Slovin, H., Dougherty, B. J., & Zbiek, R. M. Developing essential understanding of geometry and measurement for teaching mathematics in grades 3-5.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Lehrer, Richard, Hannah Slovin, Barbara J. Dougherty, και Rose Mary Zbiek. Developing Essential Understanding of Geometry and Measurement for Teaching Mathematics in Grades 3-5.

Παραπομπή σε μορφή MLA (8th εκδ.)

Lehrer, Richard, et al. Developing Essential Understanding of Geometry and Measurement for Teaching Mathematics in Grades 3-5.