[Bound collection]
MLA
Bach, Johann Christian, 1735-1782. [Bound collection]. Box 874. 1779-1798, undated. https://collections.library.yale.edu/catalog/10000250.
APA, 6th edition
Bach, Johann Christian, 1735-1782. (["Box 874"])(1779-1798, undated)[[Bound collection]]. https://collections.library.yale.edu/catalog/10000250.