Productivity problems of freshwaters
Subtitle: [proceedings]
By: Editors: Z. Kajak [and] A. Hillbricht-Ilkowska.
Contributors: Kajak, Z., ed.; Hillbricht-Ilkowska, Anna, ed.; International Biological Programme.; Unesco.
Edition: [Wyd. 1.]
Publisher: PWN - Polish Scientific Publishers [Oddz. w Krakowie]
Published: 1972
Place of publication: Kraków
Language: eng
Number of pages: 918
Subjects: Freshwater productivity -- Congresses.; Freshwater ecology -- Congresses.
Notes: Includes bibliographies.
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.