000			00321nam a2200133Ia 4500
008			150522s1980||||xx |||||||||||||| ||und||
020			_a8.94431e+008
082			_a658.2 _bLAW
245			_aEnergy conservation
250			_a-
260			_aMaryland _b Aspen Systems Corporation _c1980
300			_ax, 507 p.
942			_cC
999			_c30463 _d30463