@book{201047,
	author = {Porshnev, B. F.},
	title = {Social psychology and history /},
	publisher = {Progress Publishers,},
	year = {1970},
	address = {Moscow :},
	note = {Translation of Sot︠s︡ialʹnai︠a︡ psikhologii︠a︡ i istorii︠a︡.}
}