Acta Ornithologica, t. 17, nr 7 ; Ecological status of the shelduck ; Kilka uwag o sytuacji ekologicznej ohara w rejonie Bałtyku. Program badań terenowych
Polska Akademia Nauk. Instytut Zoologii ; International Conference on the Study and Conservation of the Migratory Birds of the Baltic Basin (2 ; 1977 ; Sopot)
Liczbowanie stron również: 81-85 ; ISBN tomu: 83-01-04891-3 ; Referat wygłoszony na Second International Conference on the Study and Conservation of the Migratory Birds of the Baltic Basin ; Bibliogr. p. 5 (85) ; 5 p. : ill. ; 24 cm ; Abstracts in Polish, Russian
MiIZ PAN, call no. P.257, T. 17, Nr 7 ; MiIZ PAN, call no. P.4568, T. 17, Nr 7 ; click here to follow the link
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Museum and Institute of Zoology of the Polish Academy of Sciences
Library of the Museum and Institute of Zoology of the Polish Academy of Sciences
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https://rcin.org.pl/publication/35353
Hahn, Ingo Römer, Uwe Schlatter, Roberto P
Coulson, J. C.
Zakharov, V. M. Valetsky, A. V. Yablokov, A. V.
Uhrynowski, Zygmunt
Brandwood, A. Jayes, A. S. Alexander, R. McN.
Croxton, Philip J Sparks, Timothy H Cade, Martin Loxton, Richard G
Maddock, A. H. Perrin, M. R.