http://book.klll.cc/ebooks/author/55291.opds 2025-09-24T04:17:31Z Books by Heffron, Ida Cassa (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 2025-09-24T04:17:31Z https://book.klll.cc/ebooks/69493.opds Lessons in chalk modeling: The new method of map drawing Ida Cassa Heffron