Columbia subject headings:
Harvard subject headings:
Asahi Kasei Kōgyō Kabushiki Kaisha--History.
Mitsubishi Kasei Kōgyō Kabushiki Kaisha--History.
Princeton subject headings:
Asahi Kasei Kōgyō Kabushiki Kaisha--History.
Mitsubishi Kasei Kōgyō Kabushiki Kaisha--History.