Cochran, W., Fenner, P., & Hill, M. (1984). Geowriting: A guide to writing, editing, and printing in earth science (4th ed.). American Geological Institute.
Lua i Stíl Chicago (17ú heag.)Cochran, Wendell, Peter Fenner, agus Mary Hill. Geowriting: A Guide to Writing, Editing, and Printing in Earth Science. 4th ed. Alexandria, Va: American Geological Institute, 1984.
Lua MLA (9ú heag.)Cochran, Wendell, et al. Geowriting: A Guide to Writing, Editing, and Printing in Earth Science. 4th ed. American Geological Institute, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.