APA
Tollefson Jeff, . (2012). Air sampling reveals high emissions from gas field:Methane leaks during production may offset climate benefits of natural gas. : Nature.
Chicago
Tollefson Jeff, . 2012. Air sampling reveals high emissions from gas field:Methane leaks during production may offset climate benefits of natural gas. : Nature.
Harvard
Tollefson Jeff, . (2012). Air sampling reveals high emissions from gas field:Methane leaks during production may offset climate benefits of natural gas. : Nature.
MLA
Tollefson Jeff, . Air sampling reveals high emissions from gas field:Methane leaks during production may offset climate benefits of natural gas. : Nature. 2012.