http://book.klll.cc/ebooks/subject/9395.opds?sort_order=downloads 2025-09-06T06:41:09Z Books about Languages, Modern -- Study and teaching (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-09-06T06:41:09Z https://book.klll.cc/ebooks/subject/9395.opds?sort_order=title Sort Alphabetically by Title 2025-09-06T06:41:09Z https://book.klll.cc/ebooks/subject/9395.opds?sort_order=release_date Sort by Release Date 2025-09-06T06:41:09Z https://book.klll.cc/ebooks/46961.opds The Principles of Language-Study Harold E. Palmer 2025-09-06T06:41:09Z https://book.klll.cc/ebooks/54943.opds How to teach a foreign language Otto Jespersen 2025-09-06T06:41:09Z https://book.klll.cc/ebooks/29163.opds The Aural System Charles Hardy