@book{Varob'yev1978,
author="V.P. Varob'yev",
title="Politichyeskaya i gosudarstvyennaya systema Narodnoy Dyemokratichyeskoy Ryespubliki Yemyen",
year="1978",
publisher="Nauka Press",
address="Moscow",
keyword0="PDRY",
keyword1="South Yemen",
type="book"
}