Rice, J. R. (1964). The approximation of functions. Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Rice, John Rischard. The Approximation of Functions. Reading, Mass.: Addison-Wesley, 1964.
Lua MLA (8ú heag.)Rice, John Rischard. The Approximation of Functions. Addison-Wesley, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.