@book{267959,
	author = {Aver΄ânov, Û.I. and Bogolûbov, Leonid Naumovič},
	title = {Zadaniâ i testy po obŝestvoznaniû : 10 kl.},
	publisher = {Škola-Press},
	year = {1999},
	series = {"Obŝestvoznanie v škole"},
	address = {Moskva},
	edition = {Izd. 2-e}
}