00570nam a2200205Ia 4500001000700000003000500007005001700012008004100029010002000070020001500090050002500105082001500130100003400145245002800179260005400207300003100261350000900292504003200301650003100333116207BIBL20160527184140.0711103s1971    maua     b    00100 eng    a 75156140 //r72  a06742244770 aQH541.5.F7bL4 1971b  a574.5/263210aBrown, Alison Leadley.2Local10aEcology of fresh water.0 aCambridge, Mass.bHarvard University Pressc1971.  axi, 129 p.billus.c21 cm.  a4.00  aBibliography: p. [119]-121. 0aFreshwater ecology.2Local