Blume, C. (1923). Twelve melodious duets: For two trombones, baritones or bassoons. Carl Fischer.
Chicago Style (17th ed.) CitationBlume, Clemens. Twelve Melodious Duets: For Two Trombones, Baritones or Bassoons. New York: Carl Fischer, 1923.
MLA (9th ed.) CitationBlume, Clemens. Twelve Melodious Duets: For Two Trombones, Baritones or Bassoons. Carl Fischer, 1923.
Warning: These citations may not always be 100% accurate.