Osborn Stephen G., Vengosh Avner, Warner Nathaniel R., Jackson Robert B., & National Academy of Sciences. Methane contamination of drinking water accompanying gas-well drilling and hydraulic fracturing.
Chicago-viite (17. p.)Osborn Stephen G., Vengosh Avner, Warner Nathaniel R., Jackson Robert B., ja National Academy of Sciences. Methane Contamination of Drinking Water Accompanying Gas-well Drilling and Hydraulic Fracturing.
MLA-viite (9. p.)Osborn Stephen G., et al. Methane Contamination of Drinking Water Accompanying Gas-well Drilling and Hydraulic Fracturing.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.