Testimony presented before the U.S. House Committee on Resources Subcommittee on Energy and Mineral Resources on June 24, 2003.
Knopman, Debra, Assessing Natural Gas and Oil Resources. Santa Monica, CA: RAND Corporation, 2003. https://www.rand.org/pubs/testimonies/CT210.html. Also available in print form.
Knopman, Debra, Assessing Natural Gas and Oil Resources, Santa Monica, Calif.: RAND Corporation, CT-210, 2003. As of October 06, 2021: https://www.rand.org/pubs/testimonies/CT210.html