Columbia subject headings:
Harvard subject headings:
Geography, Ancient.
Ptolemy, active 2nd century. Geographia--Bibliography.
Ptolemy, active 2nd century. Geographia--Criticism, Textual.
Princeton subject headings:
Geography, Ancient.
Korydalleus, Theophilos, approximately 1570-1646.
Ptolemy, active 2nd century--Scholia.
Ptolemy, active 2nd century. Geographia--Criticism, Textual.