Ganolfo Giampaolo, Collobi Licia Ragghianti, Mellini Gian Lorenzo, Monti Raffaele, Pallucchini Anna, & Santini, P. C. (1968). National gallery, washington. Newsweek.
Cita Chicago (17th ed.)Ganolfo Giampaolo, Collobi Licia Ragghianti, Mellini Gian Lorenzo, Monti Raffaele, Pallucchini Anna, i Pier Carlo Santini. National Gallery, Washington. New York: Newsweek, 1968.
Cita MLA (9th ed.)Ganolfo Giampaolo, et al. National Gallery, Washington. Newsweek, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.