@book{81143,
	author = {Chiang, Alpha C. and Wainwright, Kevin.},
	title = {Fundamental methods of mathematical economics / },
	publisher = {McGraw Hill Education},
	year = {2013},
	address = {New Delhi},
	edition = {4th ed},
	note = { Includes bibliographical references (p. 659-661) and index.}
}