Productivity problems of freshwaters
Subtitle: proceedings of the IBP-Unesco Symposium on Productivity Problems of Freshwaters held in Kazimierz Dolny, Poland, May 6-12, 1970
By: editors Z. Kajak (and) A. Hillbricht-Ilkowska.
Contributors: Kajak, Z.; Hillbricht-Ilkowska, A.; Unesco.; International Biological Programme.
Publisher: PWN-Polish Scientific Publishers
Published: 1972
Place of publication: Warszawa; Krakow
Language: eng
Notes: At head of title: International Biological Programme, PF Section-Unesco; Polish National Committee for the International Biological Programme, PF Section; Institute of Ecology of Polish Academy of Sciences.