@book{30955,
	author = {Spiegel, Murray R. and Lipschutz, Seymour},
	title = {Vector analysis and an introduction to tensor analysis /},
	publisher = {Tata McGraw Hill Education},
	year = {2009},
	series = {Schaum’s outline series},
	address = {New Delhi},
	edition = {2nd ed,},
	note = {Includes bibliographical references and index}
}