Angel, A. R., & Semmler, R. (2006). Intermediate algebra for college students (7th ed.). Pearson Education.
Lua i Stíl Chicago (17ú heag.)Angel, Allen R., agus Richard Semmler. Intermediate Algebra for College Students. 7th ed. Upper Saddle River, NJ: Pearson Education, 2006.
Lua MLA (9ú heag.)Angel, Allen R., agus Richard Semmler. Intermediate Algebra for College Students. 7th ed. Pearson Education, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.