@book{77881,
	author = {VanDemark, N. L. and Friedman, M. E.},
	title = {Preservation of Bull Semen at Sub-Zero Temperatures},
	publisher = {Project Gutenberg,},
	year = {2011},
	series = {University of Illinois Agricultural Experiment Station, Bulletin 621},
	address = {Salt Lake City, UT :},
	note = {Release date is 2011-08-11},
	url = {https://www.gutenberg.org/ebooks/37041}
}