SSSR : demograficheskiĭ diagnoz /
Valenteĭ, D. I.(Dmitriĭ Ignatʹevich)
Prokopenko, A. I.
Moskva : Progress,
1990.
"Tochka zrenii︠a︡, Platim po schetam, Bremi︠a︡ sovremennykh problem, Nash obshchiĭ dom, Uslyshatʹ budushchego zov--."
Soviet Union
Demography