Ryūichi Yasugi1911 · 13 obras en el catálogoObrasDDāuin no shōgaiDāuin no shōgai1962SSeibutsugaku no rekishiSeibutsugaku no rekishi1984SSeimeiron to shinka shisōSeimeiron to shinka shisō1984SShinkaron no rekishiShinkaron no rekishi1969SShinka to sōzōShinka to sōzō1961ŌŌmukashi no seibutsuŌmukashi no seibutsuSSeibutsugaku to watakushiSeibutsugaku to watakushiHHito to dōbutsuHito to dōbutsuSSovēto no kagakuSovēto no kagakuRRoshiya no kagakushaRoshiya no kagakushaIwanami seibutsugaku jitenSSeibutsugaku no hōkōSeibutsugaku no hōkō種種の起原種の起原
