@book{142915,
	author = {Gosudarstvennyĭ Ėrmitazh (Russia) and Mavrodin, Valentin Vladimirovich.},
	title = {Fine arms from Tula, 18th and 19th centuries /},
	publisher = {Aurora Art Publishers,},
	year = {c1977.},
	address = {Leningrad :}
}