@misc{Borowiec_Marta_Polska_1980, author={Borowiec, Marta and Wesołowski, Tomasz (1950– )}, editor={Polska Akademia Nauk. Instytut Zoologii}, copyright={Rights Reserved - Restricted Access}, address={Warszawa}, address={Wrocław}, journal={Acta Ornithologica}, howpublished={online}, year={1980}, publisher={Państwowe Wydawnictwo Naukowe}, language={pol}, language={eng}, language={rus}, title={Polska bibliografia ornitologiczna. 2, Lata 1961-1970}, type={Text}, keywords={ornithology, Poland, bibliography, birds, Aves}, }