Dictionary of weeds of eastern Europe ; Their common names and importance in latin, albanian, bulgarian, czech, german, english, greek, hungarian, polish, romanian, russian serbo-croat and slovak / Editors Gareth Williams ; Károly Hunyadi . Amsterdam :  Elsevier , 1987 . 479 s . ISBN 0-444-98969-2 . [1, z toho požičaných 0]