Her booke [Musical commonplace book]
MLA
Segar, Elizabeth., and creator. Her Booke [Musical Commonplace Book]. 1692. https://collections.library.yale.edu/catalog/2057978.
APA, 6th edition
Segar, E., & creator. (1692). Her booke [Musical commonplace book] [Manuscripts, Musical works]. https://collections.library.yale.edu/catalog/2057978.