http://www.gutenberg.org/ebooks/author/44135.opds 2024-11-09T16:34:44Z Books by Walker, A. S. (Alta Sharon) (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://www.gutenberg.org webmaster@gutenberg.org https://www.gutenberg.org/gutenberg/favicon.ico 25 1 2024-11-09T16:34:44Z https://sendtokindle.compellingsciencefiction.com/ebooks/47108.opds Deserts: Geology and Resources A. S. Walker