- United States. Federal Power Commission. Supply-Technical Advisory Task Force on Nonconventional Natural Gas Resources.
- [Washington] : U.S. Dept. of Energy, Federal Energy Regulatory Commission ; Springfield, Va. : available through the National Technical Information Service, 1979.
- Government document
- Online resource:
- HathiTrust Digital Library Connect to full text
- United States. Federal Energy Administration.
- Washington, For sale by the Supt. of Docs., U. S. Govt. Print. Off., 1974.