@book{69478,
	author = {Dolmage, Cecil Goodrich Julius,},
	title = {Astronomy of To-day: A Popular Introduction in Non-Technical Language},
	publisher = {Project Gutenberg,},
	year = {2009},
	address = {Salt Lake City, UT :},
	note = {Release date is 2009-04-21},
	url = {https://www.gutenberg.org/ebooks/28570}
}