APA (7th ed.) Citation

PennWell MAPSearch (Firm). (2012). Marcellus & Utica: 2012 natural gas & petroleum : facilities & infrastructure. PennWell's MAPSearch.

Chicago Style (17th ed.) Citation

PennWell MAPSearch (Firm). Marcellus & Utica: 2012 Natural Gas & Petroleum : Facilities & Infrastructure. [Houston, Tex.]: PennWell's MAPSearch, 2012.

MLA (9th ed.) Citation

PennWell MAPSearch (Firm). Marcellus & Utica: 2012 Natural Gas & Petroleum : Facilities & Infrastructure. PennWell's MAPSearch, 2012.

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