Léopold I, King of the Belgians (to Leicester, Anne Amelia Keppel Coke, Countess of)
MLA
Koch, Frederick R. (Frederick Robinson). Léopold I, King of the Belgians (to Leicester, Anne Amelia Keppel Coke, Countess of). Box 24, folder 521. 1831-42. https://collections.library.yale.edu/catalog/17341481.
APA, 6th edition
Koch, Frederick R. (Frederick Robinson). (["Box 24, folder 521"])(1831-42)[Léopold I, King of the Belgians (to Leicester, Anne Amelia Keppel Coke, Countess of)]. https://collections.library.yale.edu/catalog/17341481.