659,928 INTERNATIONAL International studies on sparrows / Institute of Ecology, Polish Academy of Sciences ; International Association for Ecology, Working Group on Granivo-rous Birds-INTECOL. - Dziekanów Leśny : Oficyna Wydawnicza Instytutu Ekologii PAN. - 21 cm Vol. 19. - 1992 Nr. 1-2 / ed. by Working Group on Granivorous Birds-INTECOL ; ed. Jan Pinowski ; co-ed. David T. Parkin ; ass. ed. Andrzej G. Kruszewicz. -43, [4] s. : il. ISBN 83-900357-8-2