@book{70801,
	author = {Treybal, Robert Ewald,},
	title = {Mass-transfer operations /},
	publisher = {McGraw-Hill,},
	year = {c1980.},
	series = {McGraw-Hill chemical engineering series},
	address = {New York :},
	edition = {3d ed.},
	url = {http://www.loc.gov/catdir/toc/mh021/78027876.html}
}