"Frequency or wave band allocations", Recommendations for Regulation of Radio Adopted by the Third National Radio Conference (October 6-10, 1924), page 15.
iaru.org
"IARU Regions". www.iaru.org. International Amateur Radio Union (IARU). Archived from the original on 30 December 2013. Retrieved 6 January 2014.
web.archive.org
"IARU Regions". www.iaru.org. International Amateur Radio Union (IARU). Archived from the original on 30 December 2013. Retrieved 6 January 2014.
