@book{69317,
	author = {Hammer, Mark J., and Hammer, Mark J.,},
	title = {Water and wastewater technology /},
	publisher = {PHI Learning},
	year = {c2012},
	address = {New Delhi},
	edition = {7th ed},
	note = {Includes bibliographical references and index.},
	url = {http://www.loc.gov/catdir/toc/fy11pdf04/2010027782.html}
}