@misc{_Index_1956,
 copyright={Public Domain},
 address={Kórnik},
 howpublished={online},
 year={1956},
 language={mul},
 title={Index Seminum Anno 1956 Collectorum Quae Instituti Arboretum Pro Mutua Commutatione Offer},
 type={Text},
 URL={http://www.rcin.org.pl/Content/186725/PDF/KOR001_168096_Collectorum-Quae-Inst-Arb-1956.pdf},
 keywords={catalog of seeds, seeds of trees and shrubs, seed exchange, Kórnik Arboretum},
}