エル・カピタン
↑ Chase, Gilbert (1992) "America's Music. from the Pilgrims to the Present" (3rd ed.) University of Illinois Press. p.370.
↑ Warfield, Patrick (2010) "The Marches in This Edition" John Philip Sousa - Six Marches. A-R Editions. p.lviii.
↑ Hunsberger, Donald (2001) "John Philip Sousa: His Marches", Windworks issue 5. Warner Bros. Publications. p.3.