@book{16838,
	author = {Yaglom, A. M. and Gordon, Basil},
	title = {Challenging mathematical problems with elementary solutions ; combinatorial analysis and probability theory},
	publisher = {Dover,},
	year = {1987},
	series = {Dover books on Mathematics},
	address = {New York:},
	note = {"Purchased under NBHM grant for the year 1998-99"}
}