@book{58454,
	author = {Aho A. V., and Sethi R.,},
	title = {Compilers Principles Techniques and Tool 2 nd ed },
	publisher = {Dorling Kindersley (India) Pvt.Ltd. Licensees of Pearson Education},
	year = {2012},
	address = {New Delhi},
	edition = {2nd ed.}
}