Columbia subject headings:
Harvard subject headings:
Cryptography
Feodosii︠a︡ (Ukraine)--History--Sources.
Genoa (Italy)--History--1339-1528--Sources.
Legitimation of children--Italy--Genoa.
Princeton subject headings:
Cryptography.
Feodosii︠a︡ (Ukraine)--History--Sources.
Genoa (Italy)--History--1339-1528--Sources.
Legitimation of children--Italy--Genoa.