concise summary of Esperanto grammar by G. Waringhien
Esperanto–French dictionary, edited by G. Waringhien
("Language and Life") collection of articles and essays about Esperanto by Gaston Waringhien, published in 1959
libro de Gaston Waringhien
libro de Paul Neergaard
famous grammar book
diccionario de Esperanto escrito por Gaston Waringhien
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