000 00254nam a2200097Ia 4500
100 _aWhitakar J W & Sarkar G G
245 _aStudies in Coal Washability Parts 7,8 & 9
260 _bC S I R, New Delhi
082 _aH235403/N/B09960
300 _app 14; 25*18
999 _c16155
_d16155