Analysis of information sources in references of the Wikipedia article "USA" in Danish language version.
{{cite report}}: Ukendt parameter |deadurl= ignoreret (|url-status= foreslået) (hjælp)The composition by John Philip Sousa entitled 'The Stars and Stripes Forever' is the national march.
{{cite journal}}: CS1-vedligeholdelse: Dato-format (link){{cite journal}}: Cite journal kræver |journal= (hjælp)In 1965, taxes collected by federal, state and municipal governments amounted to 24.7 percent of the nation's output. In 2010, they amounted to 24.8 percent. Excluding Chile and Mexico, the United States raises less tax revenue, as a share of the economy, than every other industrial country.
The US system seems essentially a two-party system. ...
Various studies have compared the progressivity of tax systems of European countries with that of the United States (see for instance Prasad and Deng, 2009; Piketty and Saez, 2007; Joumard, 2001). Though they use different definitions, methods and databases, they reach the same conclusion: the US tax system is more progressive than those of the continental European countries.
Since November, the United States has replaced Saudi Arabia as the world's biggest producer of crude oil. It had already overtaken Russia as the leading producer of natural gas.
{{cite web}}: CS1-vedligeholdelse: Dato-format (link)He did a search of the archives and found the letter on the front page of the April 6, 1776, edition, published by Hunter & Dixon.
{{cite journal}}: Cite journal kræver |journal= (hjælp)He did a search of the archives and found the letter on the front page of the April 6, 1776, edition, published by Hunter & Dixon.
{{cite web}}: CS1-vedligeholdelse: Dato-format (link){{cite report}}: Ukendt parameter |deadurl= ignoreret (|url-status= foreslået) (hjælp){{cite journal}}: CS1-vedligeholdelse: Dato-format (link)