Sigurdsson, H. (1999). Melting the earth: The history of ideas on volcanic eruptions. Oxford Univ. Press.
Lua i Stíl Chicago (17ú heag.)Sigurdsson, Haraldur. Melting the Earth: The History of Ideas on Volcanic Eruptions. New York [u.a.]: Oxford Univ. Press, 1999.
Lua MLA (8ú heag.)Sigurdsson, Haraldur. Melting the Earth: The History of Ideas on Volcanic Eruptions. Oxford Univ. Press, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.