000 00515nam a22001697a 4500
005 20260324130552.0
008 260324b |||||||| |||| 00| 0 eng d
020 _a0632006161
041 _aeng
082 _a574.526
_bDOW/A
100 _aDowning, John A.
245 _aA Manual on Methods for the Assessment of Secondary Productivity in Fresh Waters
_c/ by John A. Downing
260 _aLondon:
_bBlackwell Scientific Publications,
_c1984.
300 _axxiv, 501p.;
700 _aRigler, Frank H.
942 _cBK
999 _c44434
_d44434