000 00299 a2200109 4500
080 _a632.351
_bR263P
245 1 _aProceedings edited by S.P. Raychaudhuri and Anupam Varma
260 _aNew Delhi
_bToday & Tomorrow's Printers and Publishers
_c1989
100 _a
_d
300 _a139p.
901 _a219700
999 _c92108
_d92108