ZPG 1983 population action guide.
D000569:Americas; D003142:Communication; D003710:Demography; D019049:Developed Countries; D004641:Emigration and Immigration; D005193:Family Planning Services; D006076:Government; D007722:Health Knowledge, Attitudes, Practice; D007857:Leadership; D009656:North America; D011057:Politics; D011153:Population; D011157:Population Dynamics; D011640:Public Policy; D012098:Reproduction; D014481:United States
Americas; Communication; Demographic Factors; Developed Countries; Family Planning; Government; Influentials; International Migration; Knowledge Sources; North America; Northern America; Political Factors; Population; Population Dynamics; Population Policy; Reproduction; United States