APA (7th ed.) Citation

Tilling, R. I. (1989). Volcanic hazards. American Geophysical Union.

Chicago Style (17th ed.) Citation

Tilling, Robert I. Volcanic Hazards. Washington: American Geophysical Union, 1989.

MLA (9th ed.) Citation

Tilling, Robert I. Volcanic Hazards. American Geophysical Union, 1989.