Columbia subject headings:
Communication and technology--Europe--History--15th century.
Incunabula--Bibliography.
Printing--Europe--History--15th century.
Turkey--Foreign public opinion, European--Bibliography.
Turkey--History--Mehmed II, 1451-1481--Sources--Bibliography.
Harvard subject headings:
Communication and technology--Europe--History--15th century.
Incunabula--Bibliography.
Printing--Europe--History--15th century.
Turkey--Foreign public opinion, European--Bibliography.
Turkey--History--Mehmed II, 1451-1481--Sources--Bibliography.
Princeton subject headings:
Communication and technology--Europe--History--15th century.
Incunabula--Bibliography.
Printing--Europe--History--15th century.
Turkey--Foreign public opinion, European--Bibliography.
Turkey--History--Mehmed II, 1451-1481--Sources--Bibliography.