http://book.klll.cc/ebooks/author/47744.opds?sort_order=release_date 2025-11-17T11:05:41Z Books by Ridgway, Robert Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-17T11:05:41Z https://en.wikipedia.org/wiki/Robert_Ridgway See also: en.wikipedia 2025-11-17T11:05:41Z https://book.klll.cc/ebooks/63087.opds Color Standards and Color Nomenclature Robert Ridgway 2025-11-17T11:05:41Z https://book.klll.cc/ebooks/55192.opds A History of North American Birds; Land Birds; Vol. 2 of 3 Spencer Fullerton Baird, T. M. Brewer, and Robert Ridgway 2025-11-17T11:05:41Z https://book.klll.cc/ebooks/55191.opds A History of North American Birds; Land Birds; Vol. 1 of 3 Spencer Fullerton Baird, T. M. Brewer, and Robert Ridgway 2025-11-17T11:05:41Z https://book.klll.cc/ebooks/54169.opds A History of North American Birds; Land Birds; Vol. 3 of 3 Spencer Fullerton Baird, T. M. Brewer, and Robert Ridgway