APA citiranje

Chua, Q. N. L. (2007). Why is math so hard?: And many other tips to keeping a sound body and a sound mind. Anvil Publishing.

Chicago Style (17th ed.) Citation

Chua, Queena N. Lee. Why Is Math so Hard?: And Many Other Tips to Keeping a Sound Body and a Sound Mind. Pasig City, MM: Anvil Publishing, 2007.

MLA citiranje

Chua, Queena N. Lee. Why Is Math so Hard?: And Many Other Tips to Keeping a Sound Body and a Sound Mind. Anvil Publishing, 2007.