APA (7th ed.) Citation

(1989). Volcanism and plutonism of western North America: 28th International Geological Congress.

Chicago Style (17th ed.) Citation

Volcanism and Plutonism of Western North America: 28th International Geological Congress. Washington, DC, 1989.

MLA (9th ed.) Citation

Volcanism and Plutonism of Western North America: 28th International Geological Congress. 1989.

Warning: These citations may not always be 100% accurate.