Chikashi Nagano

1948

• Chūkai tokkyoken shingai handan nintei kijun
• Eigyō himitsu to kyōgyō hishi gimu no hōmu
• Gijutsu kaihatsu no kanri to keiyaku no hōmu
• Shokumu hatsumei no riron to jitsumu
• Tokkyoken, shinposei handan kijun no taikei to hanrei riron