@book{6275,
	author = {Spiegel, Murray R.},
	title = {Schaum's Outline of Theory and Problems of Vector Analysis: and an introduction to tensor analysis SI(metric) edition},
	publisher = {Mc Graw HIll},
	year = {,1981.},
	address = {New York:},
	edition = {NA},
	note = {Includes Index}
}