Proleta kurso de esperanto =
Subtitle: Puroretaria esuperanto kōza
By: Puroretaria Kagaku Kenkyūjo Esuperanto Kenkyūkai hen, [henshū daihyō Mutō Marukusu].
Contributors: Mutō, Marukusu.; Puroretaria Kagaku Kenkyūjo. Esuperanto Kenkyūkai.
Publisher: Tettō Shoin
Published: 1930
Place of publication: Tōkyō
Language: epo
Subjects: Esperanto -- Textbooks for Japanese speakers.
Genres: Textbooks for Japanese speakers.
Other titles: Puroretaria esuperanto kōza.
Notes: Chiefly in Esperanto.