Family size in the 1960's--a baffling fad?
D000293:Adolescent; D000328:Adult; D000368:Aged; D001723:Birth Rate; D002648:Child; D005190:Family; D005193:Family Planning Services; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012071:Religion and Sex; D014481:United States