Haas F. Grammatica de Interlingue in English

Digitalisat de S. Belitzky ex edition de Interlingue-Servicie Winterthur (Svissia) 1956. Adaptet a HTML 4.01 de Sebastian Hartwig (2009). — 31 p.This grammar is complete in the sense that it contains all essential rules used in the texts of Cosmoglotta, the official organ of the Interlingue Union, and in the "Complet Curse de Interlingue" (Complete Course of Interlingue) by A. Matejka. Moreover, all decisions by the Interlingue Academy are considered.