Columbia subject headings:
Harvard subject headings:
Kaigun Gijutsu Kenkyūjo (Japan)--History.
Naval research--Japan--History.
Technological innovations--Japan--History
World War, 1939-1945--Japan.
Princeton subject headings:
Kaigun Gijutsu Kenkyūjo--History.
Naval research--Japan--History.
Technological innovations--Japan--History.
World War, 1939-1945--Japan.