Saikin ni okeru sekai kakkoku no kanzei kaisei
Series: Chōsa shiryō -- 15, 18; Chōsa shiryō (Nihon Shōkō Kaigisho) -- 15, 18.
Publisher: Nihon Shōkō Kaigisho
Published: 1931
Place of publication: [Tokyo]
Language: jpn