Barnes, R.S.K.. Fundamentals of aquatic ecology / R.S.K. Barnes, K.H. Mann. - 2nd ed / . - Oxford : Blackwell Scientific Publications , 1991. - vii,270p. : ill.,figs ; 25cm . NULL ISBN: 0632029838 BPD 26.50 Subjects--Index Terms: AQUATIC ECOLOGY Dewey Class. No.: 577.6 / BAR/F