@book{9426806,
	author = {Pirogov, G. N.},
	title = {What is the world socialist system?},
	publisher = {Progress},
	year = {1987},
	series = {ABC of social and political knowledge},
	address = {Moscow},
	note = {Перед вып. дан.: Что такое мировая система социализма? / Пирогов Генрих Николаевич}
}