APA (7th ed.) Citation

Sigurdsson, H., & Houghton, B. F. (2015). Encyclopedia of volcanoes (Second edition.). Elsevier/AP, Academic Press is an imprint of Elsevier.

Chicago Style (17th ed.) Citation

Sigurdsson, Haraldur, and B. F. Houghton. Encyclopedia of Volcanoes. Second edition. Amsterdam ; Boston: Elsevier/AP, Academic Press is an imprint of Elsevier, 2015.

MLA (8th ed.) Citation

Sigurdsson, Haraldur, and B. F. Houghton. Encyclopedia of Volcanoes. Second edition. Elsevier/AP, Academic Press is an imprint of Elsevier, 2015.