Boyer Elizabeth W., Swistock Bryan R., Clark James, Madden Mark, Rizzo Dana E., & The Center of Rural Pennsylvania. The impact of marcellus gas drilling on rural drinking water supplies.
Chicago-viite (17. p.)Boyer Elizabeth W., Swistock Bryan R., Clark James, Madden Mark, Rizzo Dana E., ja The Center of Rural Pennsylvania. The Impact of Marcellus Gas Drilling on Rural Drinking Water Supplies.
MLA-viite (9. p.)Boyer Elizabeth W., et al. The Impact of Marcellus Gas Drilling on Rural Drinking Water Supplies.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.