FEIRER, J. L. (1974). General metals.-- ed.4. McGraw-hill.
Lua i Stíl Chicago (17ú heag.)FEIRER, John L. General Metals.-- Ed.4. New York: McGraw-hill, 1974.
Lua MLA (9ú heag.)FEIRER, John L. General Metals.-- Ed.4. McGraw-hill, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.