@book{37473,
	author = {Klamkin, Murray S. and ebrary, Inc.},
	title = {International Mathematical Olympiads 1959-1977},
	publisher = {Mathematical Association of America,},
	year = {1978.},
	series = {Anneli Lax New Mathematical Library ;},
	address = {Washington, DC :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10729391}
}