http://book.klll.cc/ebooks/subject/12448.opds?sort_order=downloads 2025-11-15T20:47:26Z Books about Guano Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-15T20:47:26Z https://book.klll.cc/ebooks/45998.opds Peru in the Guano Age A. J. Duffield 2025-11-15T20:47:26Z https://book.klll.cc/ebooks/20168.opds Guano: A Treatise of Practical Information for Farmers Solon Robinson