@book{46966,
	author = {Widtsoe, John Andreas,},
	title = {Dry-Farming : A System of Agriculture for Countries under a Low Rainfall},
	publisher = {Project Gutenberg,},
	year = {2004},
	address = {Salt Lake City, UT :},
	note = {Release date is 2004-01-01},
	url = {https://www.gutenberg.org/ebooks/4924}
}