MLA

Ponsonby, Miss, and artist. View of Les Rochers, the Country House of Madame De Sevigné, in Britagne [Art Original]. 0AD. https://collections.library.yale.edu/catalog/16824683.

APA, 6th edition

Ponsonby, M., & artist. (0 C.E.). View of Les Rochers, the country house of Madame de Sevigné, in Britagne [art original] [Pictorial works, Views, Wash drawings British 18th century]. https://collections.library.yale.edu/catalog/16824683.