Esuperanto nyūmon
Subtitle: 20 no pointo de manabu kokusaigo = Elementa lernolibro de Esperanto
By: Saka Tadashi cho
Publisher: Nihon Esuperanto Gakkai
Published: 1989
Place of publication: Tōkyō
Language: jpn
Number of pages: 32
Notes: "'Esuperanto' dai 57-kan 4-gatsu-gō furoku"--Colophon.