000 00289 a2200109 4500
008 181211b xxu||||| |||| 00| 0 eng d
100 _aWelch,Paul S
245 _aLimnology methods /
_cWelch,Paul S
260 _aNew york
_bMcGraw-Hill Book Company
_c1948
300 _a381p.
942 _2ddc
_cBK
999 _c7582
_d7582