Quellette Robert J. (1987). Understanding chemistry. Macmillan.
Lua i Stíl Chicago (17ú heag.)Quellette Robert J. Understanding Chemistry. New york: Macmillan, 1987.
Lua MLA (9ú heag.)Quellette Robert J. Understanding Chemistry. Macmillan, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.