http://book.klll.cc/ebooks/subject/26896.opds?sort_order=downloads 2025-11-17T10:05:57Z Books about Social surveys -- Pennsylvania -- Pittsburgh Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T10:05:57Z https://book.klll.cc/ebooks/46029.opds Charities and the Commons: The Pittsburgh Survey, Part I. The People Various 2025-11-17T10:05:57Z https://book.klll.cc/ebooks/46025.opds Charities and the Commons: The Pittsburgh Survey, Part II. The Place and Its Social Forces Various