000 00426pam a2200157a 44500
040 _aP K Kelkar Library, IIT Kanpur
082 _a535.2
_bW168p2
100 _aWalsh, John William Tudor
245 1 _aPhotometry
_cJohn William Tudor Walsh
250 _a2nd
260 _aLondon
_bConstable & Co.
_c1958
300 _axxiv, 544p
650 _aPhotometry
650 _aPhotometry -- Bibliography
997 _a1641 C
999 _c414242
_d414242