APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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

Warning: These citations may not always be 100% accurate.