000 00259nam a2200121Ia 4500
008 220709b1958 xxu||||| |||| 00| 0 eng d
082 _a522.6,
_bW16P
100 _aWalsh, John W. T.
245 _aPhotometry
260 _aLondon
_bConstable
_c1958
300 _axxiv,544p.
942 _cBooks
906 _a108023
981 _aLondon: Constable, 1958.
982 _axxiv,544p.
983 _aPhotometry
999 _c102644
_d102644