@book{898,
	author = {Polonyi, Michael J. G.},
	title = {Power And Process Control Systems : For The Plant Engineer And Designer},
	publisher = {Mcgraw-Hill },
	year = {1991},
	address = {USA},
	url = {http://www.amazon.com/exec/obidos/ASIN/0070504148/chopaconline-20}
}