Monroe, J. S. Physical geology: Exploring the earth.
Lua i Stíl Chicago (17ú heag.)Monroe, James S. Physical Geology: Exploring the Earth.
Lua MLA (8ú heag.)Monroe, James S. Physical Geology: Exploring the Earth.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.