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Lua i Stíl Chicago (17ú heag.)Sears, Francis Weston. University Physics. Cambridge: Addison-Wesley, 1949.
Lua MLA (9ú heag.)Sears, Francis Weston. University Physics. Addison-Wesley, 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.