000			00387nam a22001577a 4500
020			_a9780521343541
082			_a523.1 _bBIS/C
100			_aBiswas, S K
245			_aCosmic perspectives/ _cS K Biwas
260			_c1989. _bCambridge university press, _anew york;
300			_aviii,249p.;
650			_aPhysics
700			_aMallik D C V
700			_aVishaveshwara C V
942			_cBK
999			_c16305 _d16305