http://book.klll.cc/ebooks/author/36458.opds 2025-11-14T16:09:32Z Books by De Zafra, Carlos Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-14T16:09:32Z https://book.klll.cc/ebooks/33535.opds The Development of Armor-piercing Shells (With Suggestions for Their Improvement) Carlos De Zafra