Cita APA (7th ed.)

Sigurdsson, H. (1999). Melting the earth: The history of ideas on volcanic eruptions. Oxford Univ. Press.

Cita Chicago (17th ed.)

Sigurdsson, Haraldur. Melting the Earth: The History of Ideas on Volcanic Eruptions. New York [u.a.]: Oxford Univ. Press, 1999.

Cita MLA (8th ed.)

Sigurdsson, Haraldur. Melting the Earth: The History of Ideas on Volcanic Eruptions. Oxford Univ. Press, 1999.