Linked Data Explorerhttp://worldcat.org/entity/work/id/12534595
Jen nia mondo : an introductory series of lessons in Esperanto, the living language which aims to solve the world's language problem by becoming a second language, neutral and simple, for all mankind
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- "Problems and exercises"
http://schema.org/name
- "Jen nia mondo : an introductory series of lessons in Esperanto, the living language which aims to solve the world's language problem by becoming a second language, neutral and simple, for all mankind"