MLA

Thompson, J., and author. To the Memory of Her Royal Highness the Princess Charlotte of Wales & Saxe-Cobourg : Who Died Novr. 6th, 1817. Published by S. Rothwell, 3 Hatfield St., Blackfriars Road, 0AD. https://collections.library.yale.edu/catalog/33111687.

APA, 6th edition

Thompson, J., & author. (0 C.E.). To the memory of Her Royal Highness the Princess Charlotte of Wales & Saxe-Cobourg : who died Novr. 6th, 1817 [Poetry, Memorial cards, Poems, Ephemera, Engravings England London 1817]. Published by S. Rothwell, 3 Hatfield St., Blackfriars Road. https://collections.library.yale.edu/catalog/33111687.