Redman, L. A. (1968). The Physics teachers handbook: Supplement 1, Ed. Spectrum Books.
Lua i Stíl Chicago (17ú heag.)Redman, Lister Appleton. The Physics Teachers Handbook: Supplement 1, Ed. Lytham St.Annes, Eng.: Spectrum Books, 1968.
Lua MLA (8ú heag.)Redman, Lister Appleton. The Physics Teachers Handbook: Supplement 1, Ed. Spectrum Books, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.