Tobey, J., Slater, J., Blair, J., & Crawford, J. (2009). Basic college mathematics (6th ed.). Pearson.
Lua i Stíl Chicago (17ú heag.)Tobey, John, Jeffrey Slater, Jamie Blair, agus Jennifer Crawford. Basic College Mathematics. 6th ed. Upper Saddle River, N.J: Pearson, 2009.
Lua MLA (9ú heag.)Tobey, John, et al. Basic College Mathematics. 6th ed. Pearson, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.