@misc{Staszkiewicz_Jerzy_(1929–_)_Taxonomy_1990,
 author={Staszkiewicz, Jerzy (1929– ) and Wójcicki, Jan J. (1950– )},
 editor={Zarzycki, Kazimierz (1930- ). Redaktor},
 editor={Korzeniak, Urszula. Redaktor},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Polish Botanical Studies. Guidebook Series},
 howpublished={online},
 year={1990},
 publisher={Polish Academy of Sciences, W. Szafer Institute of Botany},
 language={eng},
 title={Taxonomy of the genus Trapa L. from the Europe and adjacent territories},
 type={Text},
 URL={http://www.rcin.org.pl/Content/217210/PDF/KR171_253135_ResProgRep1988-90_Staszkiewicz-Taxonomy-Trapa.pdf},
}