Kunio Oka

道徳論

道徳論

1990

Wakaki Ishikawa Takuboku

Wakaki Ishikawa Takuboku

1958

Kagakusha no michi

Kagakusha no michi

1948

Gaitō hyōron

Gaitō hyōron

1937

Kagaku shisō-shi

Kagaku shisō-shi

1936

Kagaku to bungaku

Kagaku to bungaku

1936

Shizen benshōhō

Shizen benshōhō

1932