Supply and demand for energy in the United States by States and regions, 1960 and 1965 : integrated energy balances and energy flows (prepared from four parts) / by R.F. Zaffarano [and others].
1. Coal, by G.N. Broderick.--2. Utility electricity, by F.P. Hall and G.N. Broderick.--3. Dry natural gas, by L.H. Crump.--4. Petroleum and natural gas liquids, by L.H. Crump and P.N. Yasnowsky.