Dott, R. H., Batten, R., & Sale, R. D. (1976). Evolution of the earth (Second edition.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Dott, Robert H., Roger Batten, agus Randall D. Sale. Evolution of the Earth. Second edition. New York: McGraw-Hill, 1976.
Lua MLA (9ú heag.)Dott, Robert H., et al. Evolution of the Earth. Second edition. McGraw-Hill, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.