This match report was published in the Spanish newspaper La Voz, on 31st July 1930, on page 7. Below are links to two videos on the FIFA website which contains footage of the final.
http://www.fifa.com/worldcup/videos/y=2009/m=7/video=1930-fifa-world-cup-uruguaytm-1083334.html
http://www.fifa.com/worldcup/videos/y=2007/m=5/video=1930-fifa-world-cup-uruguay-515950.html