@book{4212,
	author = {Croxton, F. E. and Cowden, D. J.},
	title = {Practical business statistics},
	publisher = {Prentice Hall of India Pvt. Limited},
	year = {1974},
	address = {New Delhi},
	edition = {4th},
	note = {B / 14815 / 17.01.1977}
}