Columbia subject headings:
Harvard subject headings:
Brown, Dan, 1964- Angels & demons.
Brown, Dan, 1964---Criticism and interpretation.
Popes in literature.
Secret societies in literature.
Vatican City--In literature.
Princeton subject headings:
Brown, Dan, 1964- Angels & demons.
Brown, Dan, 1964---Criticism and interpretation.
Popes in literature.
Secret societies in literature.
Vatican City--In literature.