Columbia subject headings:
Caxton, William, approximately 1422-1491 or 1492.
Harvard subject headings:
Caxton, William, approximately 1422-1491 or 1492--Bibliography.
Caxton, William, approximately 1422-1491 or 1492.
Incunabula--England--Bibliography.
Mansion, Colard, active 15th century.
Printers--England--Biography.
Printing--England--History--Origin and antecedents
Princeton subject headings:
Caxton, William, approximately 1422-1491 or 1492.
Mansion, Colard, active 15th century.