Secretum.

MLA

Nichols, J.G, and Francesco Petrarca. Secretum. Richmond: Oneworld Classics, 2010.

APA

Nichols, J., & Petrarca, F. (2010). Secretum. Richmond: Oneworld Classics.

Chicago

Petrarca, Francesco, Secretum. Translated by J.G Nichols. Richmond: Oneworld Classics, 2010.