@book{83,
	author = {Davis, Mackenzie, L  and  Masten, Susan J},
	title = {Principles of Environmental Engineering and Science},
	publisher = {McGraw Hill Education (India) Pvt. Ltd.},
	year = {2015,c2009},
	address = { New Delhi},
	edition = {2nd},
	note = {The emphasis of this text is on the principles that guide decision making in environmental engineering. The concept of mass balance extends throughout the text as a tool for problem soveing, and the text boasts extensive coverage of chemistry, biology and hydrology. Principles' chemistry and biology reviews, along with the coverage of ethics, will aid students in gaining a better understanding of the engineering and science topics presented in the book.}
}