http://book.klll.cc/ebooks/subject/21435.opds?sort_order=release_date 2025-08-17T18:47:36Z Books about Opera -- United States (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-17T18:47:36Z https://book.klll.cc/ebooks/subject/21435.opds?sort_order=title Sort Alphabetically by Title 2025-08-17T18:47:36Z https://book.klll.cc/ebooks/subject/21435.opds?sort_order=downloads Sort by Popularity 2025-08-17T18:47:36Z https://book.klll.cc/ebooks/36144.opds The Mapleson Memoirs, 1848-1888, vol II James Henry Mapleson 2025-08-17T18:47:36Z https://book.klll.cc/ebooks/36143.opds The Mapleson Memoirs, 1848-1888, vol I James Henry Mapleson