International Association of Geochemistry and Cosmochemistry & Siegel, F. R. (1979). Review of research on modern problems in geochemistry. Unesco.
Lua i Stíl Chicago (17ú heag.)International Association of Geochemistry and Cosmochemistry agus Frederic R. Siegel. Review of Research on Modern Problems in Geochemistry. Paris: Unesco, 1979.
Lua MLA (9ú heag.)International Association of Geochemistry and Cosmochemistry agus Frederic R. Siegel. Review of Research on Modern Problems in Geochemistry. Unesco, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.