Lavin, I. (2013). Divine Grace and the Remedy of the Imperfect: Michelangelo's Signature on the St. Peter's Pietà. Künstlersignaturen : von der Antike bis zur Gegenwart.
Citazione stile Chigago Style (17a edizione)Lavin, Irving. "Divine Grace and the Remedy of the Imperfect: Michelangelo's Signature on the St. Peter's Pietà." Künstlersignaturen : Von Der Antike Bis Zur Gegenwart 2013.
Citatione MLA (8a ed.)Lavin, Irving. "Divine Grace and the Remedy of the Imperfect: Michelangelo's Signature on the St. Peter's Pietà." Künstlersignaturen : Von Der Antike Bis Zur Gegenwart, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.