Co, M. B. (1987). McGraw-Hill encyclopedia of science and technology. McGraw-Hill Book Co.
Lua i Stíl Chicago (17ú heag.)Co, McGraw-Hill Book. McGraw-Hill Encyclopedia of Science and Technology. McGraw-Hill Book Co, 1987.
Lua MLA (8ú heag.)Co, McGraw-Hill Book. McGraw-Hill Encyclopedia of Science and Technology. McGraw-Hill Book Co, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.