000 00315pam a2200121a 44500
040 _aP K Kelkar Library, IIT Kanpur
082 _a523.1
_bSa2u
100 _a
245 0 _aScientific american book The universe
260 _aNew York
_bSimon And Schuster
_c1956
300 _axvi, 142p
997 _a31249 C
999 _c450108
_d450108