MLA

James Marshall Osborn Collection of Poetry Manuscripts, [Ca. 1500-1900]. 0AD. https://collections.library.yale.edu/catalog/10082131.

APA, 6th edition

James Marshall Osborn collection of poetry manuscripts, [ca. 1500-1900]. (0 C.E.). [Clippings (information artifacts) (AAT), drawings (AAT), illustrations (AAT), manuscripts (AAT), poems (AAT), sketches (AAT)]. https://collections.library.yale.edu/catalog/10082131.