Lalas, Greg (17 April 2007). "Foreign exchange program". Sports Illustrated. Diarsipkan dari versi asli tanggal 21 April 2007. Diakses tanggal 22 April 2007.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)
Fraser v. Major League Soccer, 01 F.3d 1296 (US 1st Cir. March 20, 2002). “MLS owns all of the teams that play in the league (a total of 12 prior to the start of 2002), as well as all intellectual property rights, tickets, supplied equipment, and broadcast rights. … However, MLS has also relinquished some control over team operations to certain investors. MLS contracts with these investors to operate…the league's teams”
"Panduan Singkat Major League Soccer". The Boot Room. 8 Juni 2012. Diarsipkan dari versi asli tanggal 10 Mei 2015. Diakses tanggal 20 September 2014.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)
Lalas, Greg (17 April 2007). "Foreign exchange program". Sports Illustrated. Diarsipkan dari versi asli tanggal 21 April 2007. Diakses tanggal 22 April 2007.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)
"Panduan Singkat Major League Soccer". The Boot Room. 8 Juni 2012. Diarsipkan dari versi asli tanggal 10 Mei 2015. Diakses tanggal 20 September 2014.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)
