December 26, 2008 Youth Radio's Luis Sierra describes his father's decision to return to Mexico after decades in the United States. His father believes ...
http://www.npr.org/templates/story/story.php?storyId=98718795
June 19, 2008 Youth Radio commentator Luis Sierra says more ads are using both Spanish and English to market to Latino audiences. ... by Luis Sierra. June 19, 2008. ...
By Luis Sierra
http://www.npr.org/templates/story/story.php?storyId=91692472
July 29, 2004 ... Youth Radio's Luis Sierra reports. ... Listen. Morning Edition. Add to Playlist; Download; Transcript. Youth Radio's Luis Sierra works to file a story on deadline. ...
http://www.npr.org/templates/story/story.php?storyId=3801643
May 16, 2007 ... mascot. Luis Sierra(ph) found a practical reason to get involved with an ad profile: a bonus feature. Mr. LUIS SIERRA (MySpace User ...
http://www.npr.org/templates/story/story.php?storyId=10215577
July 28, 2004 ... Now Aviles is spending a lot of time networking with the party's Latino caucus. Youth Radio's Luis Sierra reports. ... Youth Radio's Luis Sierra reports. ...
http://www.npr.org/templates/story/story.php?storyId=3627215
