Columbia subject headings:
Caxton, William, approximately 1422-1491 or 1492.
Harvard subject headings:
Caxton, William, approximately 1422-1491 or 1492--Travel--Germany--Cologne.
Caxton, William, approximately 1422-1491 or 1492.
Cologne (Germany)--Imprints.
Incunabula--Germany--Cologne--Bibliography.
Printing--Germany--Cologne--History--Origin and antecedents.
Princeton subject headings:
Caxton, William, approximately 1422-1491 or 1492--Travel--Germany--Cologne.
Cologne (Germany)--Imprints.
Incunabula--Germany--Cologne--Bibliography.
Printing--Germany--Cologne--History--Origin and antecedents.