APA (7th ed.) Citation

Wenkam, R. (1987). The edge of fire: Volcano and earthquake country in western North America and Hawaii. Sierra Club Books.

Chicago Style (17th ed.) Citation

Wenkam, Robert. The Edge of Fire: Volcano and Earthquake Country in Western North America and Hawaii. San Francisco: Sierra Club Books, 1987.

MLA (9th ed.) Citation

Wenkam, Robert. The Edge of Fire: Volcano and Earthquake Country in Western North America and Hawaii. Sierra Club Books, 1987.