http://book.klll.cc/ebooks/author/54955.opds?sort_order=downloads 2025-11-18T19:48:46Z Books by Vilas, Martin Samuel Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T19:48:46Z https://en.wikipedia.org/wiki/Martin_S._Vilas See also: en.wikipedia 2025-11-18T19:48:46Z https://book.klll.cc/ebooks/68805.opds Water and power for San Francisco from Hetch-Hetchy Valley in Yosemite National Park Martin Samuel Vilas