@book{425,
	author = { Mendham, J and  Denney, R.C | Barnes, J.D | Thomas, M | Sivasankar, B},
	title = {Vogel's Textbook of quantitative chemical analysis},
	publisher = {Pearson},
	year = {2009},
	address = {Noida },
	edition = {6th Ed.}
}