http://book.klll.cc/ebooks/subject/38081.opds 2025-11-14T16:10:19Z Books about Advertising cards Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-14T16:10:19Z https://book.klll.cc/ebooks/68778.opds Elements of show card writing John H. De Wild