@book{24430,
	author = {Naumann, Carl Friedrich,},
	title = {Lehrbuch der geognosie,},
	publisher = {W. Engelmann,},
	year = {1858-72.},
	address = {Leipzig,},
	edition = {2. verm. und verb. aufl.},
	note = {1.-2 bände each issued in 2 abtheilungen; 3. band intended to comprise 4 lieferungen, only 3 of which were published.}
}