00686cam a22002171 4500 gs 61000263 DLC 20260227111410.0 821022s1961 dcu b f000 0 eng c gs 61000263 (OCoLC)8883223 U.S. Geol. Survey. Libr. MsSM MsSM DLC QE75 .C5 no. 447 Trumbull, James, 1927- Selected sources of information on U.S. and world energy resources, an annotated bibliography. Washington, 1961. 8 p. 27cm. Geological Survey (U.S.). Circular, 447 Power resources Bibliography. Fuel Bibliography. 29568 29568