Παραπομπή σε μορφή APA (7η εκδ.)

Clemens, C. H. (2019). Two-dimensional geometries: A problem-solving approach. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Clemens, C. Herbert. Two-dimensional Geometries: A Problem-solving Approach. Providence: American Mathematical Society, 2019.

Παραπομπή σε μορφή MLA (8th εκδ.)

Clemens, C. Herbert. Two-dimensional Geometries: A Problem-solving Approach. American Mathematical Society, 2019.