APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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

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