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Productivity problems of freshwaters : (proceedings of IBP-UNESCO Symposium on Productivity Problems held in Kazimierz Dolny, Poland, May 6-12, 1970)

Corporate Authors: Institute of ecology of Polish Academy of sciences, International Biological Programme, UNESCO
Other Authors: Hillbricht-Ilkowska, Anna, Kajak, Z.
Language:English
Published: Krakow: PWN-Polish Scientific Pub, 1972.
Subjects:
Freshwater productivit -- > Congresses
Freshwater ecolog -- > Congresses

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