@book{804,
	author = {Park, K. and Park, J. E.,},
	title = {Park's textbook of preventive and social medicine /},
	publisher = {Banarsidas Bhanot,},
	year = {1994.},
	address = {Jabalpur :},
	edition = {Fourteenth edition},
	note = {"The twelfth edition published under the title Textbook of preventive and social medicine."--t.p. verso.}
}