Rossini, G., & Widder 18/19. Guillaume Tell, winds, Excerpts. Arr - BSB Mus.ms. 2603: [score, heading:] No: 21 // arrangirt von Widder. [at right, by other hand:] aus der Oper W: Tell von Rossini.
Chicago Style (17th ed.) CitationRossini, Gioachino, and Widder 18/19. Guillaume Tell, Winds, Excerpts. Arr - BSB Mus.ms. 2603: [score, Heading:] No: 21 // Arrangirt Von Widder. [at Right, by Other Hand:] Aus Der Oper W: Tell Von Rossini.
MLA (9th ed.) CitationRossini, Gioachino, and Widder 18/19. Guillaume Tell, Winds, Excerpts. Arr - BSB Mus.ms. 2603: [score, Heading:] No: 21 // Arrangirt Von Widder. [at Right, by Other Hand:] Aus Der Oper W: Tell Von Rossini.
Warning: These citations may not always be 100% accurate.