APA (7th ed.) Citation

Phillips, S. S. (2012). The Papal collection of photographs in the Vatican Library. Biblioteca apostolica vaticana.

Chicago Style (17th ed.) Citation

Phillips, Sandra S. The Papal Collection of Photographs in the Vatican Library. Città del Vaticano: Biblioteca apostolica vaticana, 2012.

MLA (8th ed.) Citation

Phillips, Sandra S. The Papal Collection of Photographs in the Vatican Library. Biblioteca apostolica vaticana, 2012.