00582nam a2200181 a 450000500170000000800410001702000180005804100080007608200100008410000300009424500500012426400630017430000320023749000640026950000280033365000210036170000180038220260717090954.0260717s1977    ii            000 0 eng d  a9780470993774  aeng04a333.71 aMcMullan, J. T. (John T.)10aEnergy recourses /cMcMullan, J. T. (John T.) 1aLondon :bResource and environmental Edward Arnold,c1977.  aviii, 177 p. : ill ; 22 cm.0 aResource and environmental sciences series (New York, N.Y.)  a"A Halsted Press book." 4aPower resources.1 aMurray, R. B.