Columbia subject headings:
Books--Europe--17th century.
Fortification in literature--17th century.
Fortification--Bibliography--17th century.
Fortification--Europe--Designs and plans--17th century.
Military architecture--Bibliography--17th century.
Military architecture--Europe--Designs and plans--17th century.
Military engineering--Bibliography--17th century.
Military engineering--Europe--Designs and plans--17th century.
Harvard subject headings:
Books--Europe--17th century.
Early printed books--Europe--17th century--Bibliography.
Fortification in literature--17th century.
Fortification in literature.
Fortification--Bibliography--17th century.
Fortification--Bibliography.
Fortification--Europe--Designs and plans--17th century.
Fortification--Europe--History--17th century.
Military architecture--Bibliography--17th century.
Military architecture--Bibliography.
Military architecture--Europe--Designs and plans--17th century.
Military architecture--Europe--History--17th century.
Military engineering--Bibliography--17th century.
Military engineering--Bibliography.
Military engineering--Europe--Designs and plans--17th century.
Military engineering--Europe--History--17th century.
Princeton subject headings:
Early printed books--Europe--17th century--Bibliography.
Fortification in literature--17th century.
Fortification--Europe--History--17th century.
Military architecture--Europe--History--17th century.
Military engineering--Europe--History--17th century.