MLA

Montesquieu, Charles de Secondat, baron de, 1689-1755. Lettres persanes. 1721.. https://collections.library.yale.edu/catalog/32184179.

APA, 6th edition

Montesquieu, Charles de Secondat, baron de, 1689-1755. (1721.)[Lettres persanes]. https://collections.library.yale.edu/catalog/32184179.