Puroretaria Esuperanto hikkei
Subtitle: ABC de proleta Esperanto
By: Osaka Kenji, Itō Saburō cho
Contributors: Itō, Saburō, 1902-1969
Publisher: Tettō Shoin
Published: 1930
Place of publication: Tōkyō
Language: jpn
Number of pages: 300
Subjects: Esperanto; Textbooks for Japanese