Bonic, R. A. (1971). Freshman calculus. D.C. Heath.
Lua i Stíl Chicago (17ú heag.)Bonic, Robert A. Freshman Calculus. Lexington: D.C. Heath, 1971.
Lua MLA (9ú heag.)Bonic, Robert A. Freshman Calculus. D.C. Heath, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.