MLA
Bach, Johann Sebastian, 1685-1750. Quod Libet" by Johann Sebastian Bach with musical notation in the handwriting of Samuel Wesley. between 1766 and 1837. Wesleyana Collection. Pitts Theology Library. https://digital.library.emory.edu/purl/252j6q57nk-cor.
APA, 6th edition
Bach, Johann Sebastian, 1685-1750. (between 1766 and 1837)[Quod Libet" by Johann Sebastian Bach with musical notation in the handwriting of Samuel Wesley]. Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/252j6q57nk-cor.
Chicago
Bach, Johann Sebastian, 1685-1750, Quod Libet" by Johann Sebastian Bach with musical notation in the handwriting of Samuel Wesley, between 1766 and 1837, Wesleyana Collection, Pitts Theology Library. https://digital.library.emory.edu/purl/252j6q57nk-cor.