https://www.cia.gov/library/publications/the-world-factbook/geos/gm.html

http://www.germany.info/Vertretung/usa/en/Startseite.html

http://www.state.gov/r/pa/ei/bgn/3997.htm

http://www.state.gov/r/pa/ei/bgn/3842.htm

https://www.cia.gov/library/publications/the-world-factbook/geos/fr.html

http://travel.state.gov/travel/cis_pa_tw/cis/cis_970.html

https://www.cia.gov/library/publications/the-world-factbook/geos/mx.html

https://www.cia.gov/library/publications/the-world-factbook/geos/au.html

http://www.austria.org/

https://www.cia.gov/library/publications/the-world-factbook/geos/ca.html

http://canada.gc.ca/home.html

http://www.state.gov/r/pa/ei/bgn/2878.htm

http://www.infoplease.com/ipa/A0107987.html