Columbia subject headings:
Fried. Krupp AG--History.
Fried. Krupp AG--Pictorial works.
Krupp family.
Krupp, Alfred, 1812-1887.
Krupp, Alfried, 1907-1967.
Steel industry and trade--Germany--History.
Weapons industry--Germany--History.
Harvard subject headings:
Fried. Krupp AG--History--Pictorial works.
Fried. Krupp AG--History.
Fried. Krupp AG--Pictorial works.
Krupp family.
Krupp, Alfred, 1812-1887.
Krupp, Alfried, 1907-1967.
Steel industry and trade--Germany--History
Steel industry and trade--Germany--History--Pictorial works.
Weapons industry--Germany--History--Pictorial works.
Weapons industry--Germany--History.
Princeton subject headings:
Fried. Krupp AG--History--Pictorial works.
Fried. Krupp AG--History.
Krupp family.
Krupp, Alfred, 1812-1887.
Krupp, Alfried, 1907-1967.
Steel industry and trade--Germany--History--Pictorial works.
Steel industry and trade--Germany--History.
Weapons industry--Germany--History--Pictorial works.
Weapons industry--Germany--History.