APA (7th ed.) Citation

Heiken, G. (1974). An atlas of volcanic ash. Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Heiken, Grant. An Atlas of Volcanic Ash. Washington, D.C.: Smithsonian Institution Press, 1974.

MLA (9th ed.) Citation

Heiken, Grant. An Atlas of Volcanic Ash. Smithsonian Institution Press, 1974.