MLA

Ernest Augustus, King of Hanover, 1771-1851. [Le nozze di Figaro. Overture]. Arranged by John Collier. Parts (2 fl, 2 ob, 6 cl, 3 bn, spt, 3 hn, 3 tpt, trbn, timp). Manuscript. Box 248, folder 1308 | Box 249, folder 1309-1310. undated. https://collections.library.yale.edu/catalog/10000234.

APA, 6th edition

Ernest Augustus, King of Hanover, 1771-1851. (["Box 248, folder 1308 | Box 249, folder 1309-1310"])(undated)[[Le nozze di Figaro. Overture]. Arranged by John Collier. Parts (2 fl, 2 ob, 6 cl, 3 bn, spt, 3 hn, 3 tpt, trbn, timp). Manuscript]. https://collections.library.yale.edu/catalog/10000234.