http://book.klll.cc/ebooks/author/42790.opds 2025-08-05T10:32:43Z Books by Zerffi, G. G. (Gustavus George) (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 2025-08-05T10:32:43Z https://en.wikipedia.org/wiki/Gustav_Zerffi See also: en.wikipedia 2025-08-05T10:32:43Z https://book.klll.cc/ebooks/44509.opds A Manual of the Historical Development of Art G. G. Zerffi