Productivity problems of freshwaters: proceedings of the IBP-UNESCO symposium on productivity prolems of freshwaters hel in Kazimiers Dolny, Polond, May 6-12, 1970

Productivity problems of freshwaters: proceedings of the IBP-UNESCO symposium on productivity prolems of freshwaters hel in Kazimiers Dolny, Polond, May 6-12, 1970 text Warsawa Polish Scientific 1972 Ind 918 p. : ill. ; 24 cm. 918 p. : ill. ; 24 cm. SYMPOSIUM ON PRODUCTIVITY PROBLEMS OF FRESHWATERS (1970 : Kazimiers Dolny) FRESHWATER ECOLOGY 639.6 639.6SYMp INLIS000000000023506 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)