Hua, L. (1981). Starting with the unit circle: Background to higher analysis. Springer-Verlag.
Lua i Stíl Chicago (17ú heag.)Hua, Loo-Keng. Starting with the Unit Circle: Background to Higher Analysis. New York: Springer-Verlag, 1981.
Lua MLA (9ú heag.)Hua, Loo-Keng. Starting with the Unit Circle: Background to Higher Analysis. Springer-Verlag, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.