APA (7th ed.) Citation

Pratt, T. L. (2009). Finding trapped miners by using a prototype seismic recording system made from music-recording hardware. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Pratt, Thomas L. Finding Trapped Miners by Using a Prototype Seismic Recording System Made from Music-recording Hardware. Reston, Va.: U.S. Geological Survey, 2009.

MLA (9th ed.) Citation

Pratt, Thomas L. Finding Trapped Miners by Using a Prototype Seismic Recording System Made from Music-recording Hardware. U.S. Geological Survey, 2009.