@book{77160,
	author = {Pfannkuch, Hans-Olaf. and Pfannkuch, Hans-Olaf.},
	title = {Elsevier's dictionary of environmental hydrogeology :},
	publisher = {Elsevier,},
	year = {1990.},
	address = {Amsterdam ;},
	note = {Rev. ed. of: Elsevier's dictionary of hydrogeology.},
	url = {http://www.loc.gov/catdir/enhancements/fy0601/89071458-d.html}
}