Hewitt, P. G. (1997). Conceptual physics (3a. ed.). Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)Hewitt, Paul G. Conceptual Physics. 3a. ed. Reading: Addison-Wesley, 1997.
Lua MLA (9ú heag.)Hewitt, Paul G. Conceptual Physics. 3a. ed. Addison-Wesley, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.