APA (7th ed.) Citation

Virta, R. L. (2006). Worldwide asbestos supply and consumption trends from 1900 through 2003. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Virta, Robert L. Worldwide Asbestos Supply and Consumption Trends from 1900 Through 2003. Reston, Va.: U.S. Geological Survey, 2006.

MLA (9th ed.) Citation

Virta, Robert L. Worldwide Asbestos Supply and Consumption Trends from 1900 Through 2003. U.S. Geological Survey, 2006.