@book{13413,
	author = {Baranov, I.; Bogatyrev, G.; Bokovnev, O.; Levant, Leonid (trans.)},
	title = {Mathematics for pre-college students /},
	publisher = {Mir Publishers,},
	year = {1985.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/5030009507/chopaconline-20}
}