- Beginner's Esperanto (Hippocrene Beginner's) by Joseph F. Conroy, 1994-06
- Esperanto - Terminologie und Terminologiearbeit (German Edition) by Wera Blanke, 2008-02-11
- English-Esperanto dictionary by Fleming and LONG, Bernard FULCHER, 1949
- Step By Step in Esperanto: A Simple Textbook and Reader (Import) by Montagu C. Butler, 1943
- Vocabulary Builder - Esperanto by Eurotalk Ltd, 2009-10-22
- Step by Step in Esperanto by Montagu C. Butler, 1979-06
- English-Esperanto Dictionary by J. C. O'Connor, C. F. Hayes, 2008-11-21
- Esperanto, the Aggressor Language FM 30-101-1
- Esperanto (the Universal Language) by O'Connor, 2009-12-30
- Esperanto : The Aggresssor Language by Dept of the Army, 1962-01-01
- A Complete Grammar Of Esperanto: The International Language (1910) by Ivy Kellerman, 2010-09-10
- Esperanto [The Universal Language]: the Student's Complete TextbookContaining Full Grammar. by J.C., compiler O'Connor, 1903
- Esperanto, The Universal Language: The Student's Complete Textbook, Containing Full Grammar, Exercises, Conversations, Commercial Letters, And Two Vocabularies (1903) by John Charles O'Connor, 2010-09-10
- Esperanto (the Universal Language): The Student's Complete Text Book, Containing Full Grammar, Exercises, Conversations, Commercial Letters, And Two Vocabularies
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