APA ציטוט

Sigurdsson, H. (2000). Encyclopedia of volcanoes. Academic Press.

Chicago Style (17th ed.) Citation

Sigurdsson, Haraldur. Encyclopedia of Volcanoes. San Diego, California USA: Academic Press, 2000.

ציטוט MLA

Sigurdsson, Haraldur. Encyclopedia of Volcanoes. Academic Press, 2000.