Key to the English-French exercises of Edgren's French grammar

Summary

A search for an official, unabridged audiobook version of "Key to the English-French exercises of Edgren's French grammar" by August Hjalmar Edgren on major platforms like Audible, Google Play Books, Apple Books, Kobo, OverDrive, Hoopla, and Libby yielded no direct results. The book appears to be an older, perhaps out-of-print instructional text, with modern listings primarily for physical reprints of the text itself (often as 'Classic Reprint'). Since no modern, official audiobook is found on the specified platforms, the availability is marked as false, and no alternative audio formats were discovered during the search.