00668nam a2200205Ia 4500001000700000003000500007005001700012008004100029010002000070020001500090050002000105082002100125100002900146245004200175260007100217300004700288490004600335504005100381650003000432244336BIBL20160527184727.0770303c19771976nyuaf    b    00110 eng    a 76020405 //r81  a08766372170 aQH96b.W53 1977  a574.52632bW739f10aWilloughby, L. G.2Local10aFreshwater biologycL. G. Willoughby.0 aNew YorkbPica Press : distributed by Universe Booksc1977, c1976.  a167 p., [4] leaves of platesbill.c24 cm. 0aStudies in the biological sciences2Local  aIncludes bibliographical references and index. 0aFreshwater biology2Local