Columbia subject headings:
Biblioteca apostolica vaticana.
Catholic libraries--Vatican City.
Library resources--Vatican City.
Manuscripts--Vatican City.
Harvard subject headings:
Biblioteca apostolica vaticana--History.
Catholic libraries--Vatican City--History.
Princeton subject headings:
Biblioteca apostolica vaticana--History.
Catholic libraries--Vatican City--History.
Library resources--Vatican City.
Manuscripts--Vatican City.