Columbia subject headings:
Biblioteca apostolica vaticana--History.
Catholic libraries--Vatican City--History.
Manuscripts--Library resources.
Rare book libraries--Vatican City--History.
Rare books--Library resources.
Harvard subject headings:
Biblioteca apostolica vaticana.
Catholic libraries--Vatican City--History.
Christian art and symbolism--Vatican City.
Libraries--Vatican City--History.
Rare book libraries--Vatican City--History.
Vatican City--Buildings, structures, etc.--History.
Princeton subject headings:
Biblioteca apostolica vaticana--History.
Catholic libraries--Vatican City--History.
Manuscripts--Library resources.
Rare book libraries--Vatican City--History.
Rare books--Library resources.