Zenkoku todōfuken shikuchōsonbetsu jinkō : yōkeihyō ni yoru jinkō, Heisei 2-nen 10-gatsu 1-nichi genzai : Heisei 2-nen kokusei chōsa sokuhō = 1990 population census of Japan : preliminary counts of the population on the basis of summary sheets, as of October 1, 1990
Sōrifu Tōkeikyoku = 1975 population census of Japan; preliminary count of population, October 1, 1975 / Bureau of Statistics, Office of the Prime Minister