FLEISHMAN , E. E. (1995). EARTH'S CRUST: BE A SCIENTIST SERIES.
Lua i Stíl Chicago (17ú heag.)FLEISHMAN , E. ED. EARTH'S CRUST: BE A SCIENTIST SERIES. 1995.
Lua MLA (9ú heag.)FLEISHMAN , E. ED. EARTH'S CRUST: BE A SCIENTIST SERIES. 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.