http://www.gutenberg.org/ebooks/author/51605.opds 2024-11-10T10:51:39Z Books by Babbitt, Harold E. (Harold Eaton) (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 2024-11-10T10:51:39Z https://sendtokindle.compellingsciencefiction.com/ebooks/61773.opds Sewerage and Sewage Treatment Harold E. Babbitt