DOTT, R. H. (1981). Evolution Of The Earth Robert H. Dott And Roger L. Batten. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)DOTT, Robert H. Evolution Of The Earth Robert H. Dott And Roger L. Batten. McGraw-Hill, 1981.
Lua MLA (8ú heag.)DOTT, Robert H. Evolution Of The Earth Robert H. Dott And Roger L. Batten. McGraw-Hill, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.