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*Nestling mortality of granivorous birds due to microorganisms and toxic substances : proceedings of International Symposium of the Working Group on Granivorous Birds, INTECOL held in the Slupsk, Poland September 14-17, 1989 / editors J. Pinowski ; B. P. Kavanagh ; W. Gorski Warszawa : P W N - Polish Scientific Publishers, 1991 204 p. : ill. ; 24 cm.
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