APA-referens (7:e uppl.)

Gardner, J., & Giotto, 1. (2011). Giotto and his publics: Three paradigms of patronage. Harvard University Press.

Chicago-referens (17:e uppl.)

Gardner, Julian, och 1266?-1337 Giotto. Giotto and His Publics: Three Paradigms of Patronage. Cambridge, Mass.: Harvard University Press, 2011.

MLA-referens (9:e uppl.)

Gardner, Julian, och 1266?-1337 Giotto. Giotto and His Publics: Three Paradigms of Patronage. Harvard University Press, 2011.