Cita APA (7th ed.)
Wilkins, E. H. (1961). Life of Petrarch. Univ.Press.
Cita Chicago (17th ed.)
Wilkins, Ernest Hatch. Life of Petrarch. Chicago: Univ.Press, 1961.
Cita MLA (9th ed.)
Wilkins, Ernest Hatch. Life of Petrarch. Univ.Press, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.