Tài liệu tham khảo WikiPedia: Radzymin http://nobelprize.org/nobel_prizes/literature/laur... //tools.wmflabs.org/geohack/geohack.php?language=v... //www.worldcat.org/issn/1505-5507 http://www.stat.gov.pl/gus/5840_908_ENG_HTML.htm http://radzymin.pl
