by Donald H. (Donald Howard) Menzel, Lyle Gifford Boyd
en
~11 hours (667K characters)
Project Gutenberg
United States: Doubleday & Company, 1963.
Tim Lindell, Charlie Howard, and the Online Distributed Proofreading Team at https://www.pgdp.net (This book was produced from images made available by the HathiTrust Digital Library and Doane University.)