000 00428nam a2200121Ia 4500
008 160316s9999 xxu||||| |||| 00| 0 eng d
100 _aBlackett P M S et al
245 _aJawaharlal Nehru memorial lectures: 1967-1972
260 _aBombay
_bBhavan
_c1973
300 _aVII,220p;22cm
650 _aAstronmy - lectures,
999 _c13080
_d13080