00343nam a2200121Ia 4500008004100000041000800041082002100049100003400070245002100104260006100125300001400186999002100200231228s1993    xx            000 0 und d  aeng  a331.041 VARbVAR  aVARDARAJAN (Dhulasi Birundha)  aEnergy Economics  aNew DelhibSterling Publishing Pvt. Ltd. New Delhic1993  axiii, 222  c1081973d1081973