Παραπομπή σε μορφή APA (7η εκδ.)

Wu, H. (2011). Understanding numbers in elementary school mathematics. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wu, Hung-Hsi. Understanding Numbers in Elementary School Mathematics. Providence, Rhode Island: American Mathematical Society, 2011.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wu, Hung-Hsi. Understanding Numbers in Elementary School Mathematics. American Mathematical Society, 2011.