Cite

Observations made by Mrs. Percivall when in London, [1713 or 1714].

MLA

Percivall, Mrs. Observations Made by Mrs. Percivall When in London, [1713 or 1714]. 0AD. https://collections.library.yale.edu/catalog/16649931.

APA, 6th edition

Percivall, M. (0 C.E.). Observations made by Mrs. Percivall when in London, [1713 or 1714]. [Correspondence]. https://collections.library.yale.edu/catalog/16649931.