http://book.klll.cc/ebooks/subject/17191.opds?sort_order=release_date 2025-11-16T11:40:48Z Books about Commercial correspondence Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-16T11:40:48Z https://book.klll.cc/ebooks/38046.opds Business English: A Practice Book Rose Buhlig 2025-11-16T11:40:48Z https://book.klll.cc/ebooks/7309.opds Business Correspondence, Vol. 1: How to Write a Business Letter Anonymous