The Global Impact of Unconventional Shale Gas DevelopmentYongsheng Wang, William E. Hefley · First published 2016Open the Tome
Economics of Unconventional Shale Gas DevelopmentWilliam E. Hefley, Yongsheng Wang · First published 2014Open the Tome
Service Science, Management and Engineering Education for the 21st CenturyWendy Murphy, William E. Hefley · First published 2008Open the Tome