@book{49966,
	author = {Grasser, Georg, and Enna, Fini Georges Alexander},
	title = {Synthetic Tannins, Their Synthesis, Industrial Production and Application},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Release date is 2005-04-01},
	url = {https://www.gutenberg.org/ebooks/7981}
}