Becker, R. S. (1973). General chemistry. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)Becker, Ralph S. General Chemistry. Atltanta: Houghton Mifflin, 1973.
Lua MLA (9ú heag.)Becker, Ralph S. General Chemistry. Houghton Mifflin, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.