The population of Yugoslavia, 1948-1991.

"On 31 March, 1991, the sixth population census after World War Two was taken in Yugoslavia. The census of households, apartments and farms took place simultaneously to the population census. The census was taken in extremely difficult political, economic and other conditions, which greatly hindered its organization, and the work of the census takers and census commissions. The census was not taken in the province of Kosovo, nor partially in some other communes, thus the total population in these regions was estimated, which is explicitly stated in the tables. Furthermore, the method used to make this estimation is also cited. A comparison of the first results of the 1991 population census with data from previous censuses, and with available estimates, indicates the reliability of the results obtained in the territory in which the 1991 population census was taken."