000 00421pam a2200157a 44500
040 _aP K Kelkar Library, IIT Kanpur
082 _a500
_bB644
100 _a
245 1 _aThe book of popular science
260 _aNew York
_bGrolier Society
_c1960
300 _a10 v
650 _aNatural history
650 _aTechnology
650 _aScience
997 _a11490 v.1 C 11499 v.10 C 11496 v.7 C 11497 v.8 C
999 _c425659
_d425659