APA Zitierstil

United States Geological Survey. (2015). 2015 guide to earthquakes from fracking, hydraulic fracturing, and shale gas. Progressive Management.

MLA Zitierstil

United States Geological Survey. 2015 Guide to Earthquakes From Fracking, Hydraulic Fracturing, and Shale Gas. Progressive Management, 2015.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.