Cesi, Cardinal Pietro Donato. Copia di lettera scritta...al Sig. Luigi d'Aro in risposta alla scrittura...publicata dal Sig. Balii di Valenze... dell'anno 1654. Copy of a letter in response to Estampes de Valençay, the French Ambassador in Rome, who had written instructions to Ambassadors. A French translation of Cardinal Cesi's letter was published in Recueil de divers relations, in 1681. For Valency's instructions, see Pastor XIV/1, p. 29, n. 2. Ms. 18 pages, numbered ff. 34-42.
MLA
Cesi, Cardinal Pietro Donato. Copia Di Lettera Scritta...al Sig. Luigi d'Aro in Risposta Alla Scrittura...publicata Dal Sig. Balii Di Valenze... Dell'Anno 1654. Copy of a Letter in Response to Estampes De Valençay, the French Ambassador in Rome, Who Had Written Instructions to Ambassadors. A French Translation of Cardinal Cesi's Letter Was Published in Recueil De Divers Relations, in 1681. For Valency's Instructions, See Pastor XIV/1, p. 29, n. 2. Ms. 18 Pages, Numbered Ff. 34-42. 0AD. https://collections.library.yale.edu/catalog/33095594.
APA, 6th edition
Cesi, Cardinal Pietro Donato. Copia di lettera scritta...al Sig. Luigi d'Aro in risposta alla scrittura...publicata dal Sig. Balii di Valenze... dell'anno 1654. Copy of a letter in response to Estampes de Valençay, the French Ambassador in Rome, who had written instructions to Ambassadors. A French translation of Cardinal Cesi's letter was published in Recueil de divers relations, in 1681. For Valency's instructions, see Pastor XIV/1, p. 29, n. 2. Ms. 18 pages, numbered ff. 34-42. (0 C.E.). https://collections.library.yale.edu/catalog/33095594.