Chiiki messhu tōkei chizu, jinkō bunpuzu (Shōwa 45-nen kokusei chōsa kekka). shutoken hen = Statistical maps on grid square basis, population distribution, 1970 population census of Japan
Shōwa 40-nen kokusei chōsa zenkoku todō fuken shiku chōson no jinkō shūchū chikubetsu jinkō oyobi menseki : sokuhō = 1965 population census of Japan, preliminary counts of population and area for densely inhabited districts