PARKIN DAVID T. 659,928 INTERNATIONAL International studies on sparrows / Institute of Ecology, Polish Academy of Sciences ; International Association for Ecology, Working Group on Granivorous Birds-INTECOL. - Dziekanów Leśny: Oficyna Wydawnicza Instytutu Ekologii PAN. - 21 cm Vol. 20-21 [93-94] ed. by Working Group on Granivorous Birds-INTECOL ; ed. Jan Pinowski; co-ed. David T. Parkin. - 1995. - 42, [2] s. : wykr. ISBN 83-903232-8-1