Mezhdunarodnye vspomogatelʹnye i͡a︡zyki
By: A.D. Dulichenko.
Publisher: "Valgus,"
Published: 1990
Place of publication: Tallinn
Language: rus
Number of pages: 444
Subjects: Language, Universal -- History -- Chronology; Language, Universal -- Bibliography
Notes: Summaries in Estonian, French, German, and Esperanto.
Includes indexes.