Cleaves, C. S., & Hobbs, M. J. (2007). College mathematics (7th ed., custom ed.). Pearson Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Cleaves, Cheryl S., agus Margie J. Hobbs. College Mathematics. 7th ed., custom ed. Upper Saddle River, N.J: Pearson Prentice Hall, 2007.
Lua MLA (9ú heag.)Cleaves, Cheryl S., agus Margie J. Hobbs. College Mathematics. 7th ed., custom ed. Pearson Prentice Hall, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.