Annual report 1998 [documento electrónico] / Federal Communications Commission
Annual report 2005 / Federal Communications Commission
Annual report 1999 [documento electrónico] / Federal Communications Commission
Annual report 2000 [documento electrónico] / Federal Communications Commission
Annual report 2001 / Federal Communications Commission
Annual report 2002 [documento electrónico] / Federal Communications Commission
Annual report 2003 [documento electrónico] / Federal Communications Commission
Annual report 2004 [documento electrónico] / Federal Communications Commission
Annual report 2009 / Federal Communications Commission
Annual report 2008 [documento eletrónico] / Swiss Post