Cite

Album, formerly owned by John Murray, containing items either by Pope or related to him (in Series II)

MLA

Pope, Alexander, 1688-1744. Album, formerly owned by John Murray, containing items either by Pope or related to him (in Series II). Box 2, folder 20. 1717-1855. https://collections.library.yale.edu/catalog/2007768.

APA, 6th edition

Pope, Alexander, 1688-1744. (["Box 2, folder 20"])(1717-1855)[Album, formerly owned by John Murray, containing items either by Pope or related to him (in Series II)]. https://collections.library.yale.edu/catalog/2007768.