Tài liệu tham khảo WikiPedia: Koszalin ftp://ftp.atdd.noaa.gov/pub/GCOS/WMO-Normals/TABLE... //tools.wmflabs.org/geohack/geohack.php?language=v... http://www.koszalin.pl http://climatebase.ru/station/12105/?lang=en
