Jorgensen, S.E.
Lake management - Oxford Pergamon 1980 - xii, 167p. : ill. - Water development supply and management vol.14 .
0080224326
627.17 / J6
Lake management - Oxford Pergamon 1980 - xii, 167p. : ill. - Water development supply and management vol.14 .
0080224326
627.17 / J6