ocr: Search Help Ifyour search includes DOtMAND and OR, the results depend on whether you use. AND or OR first. Category: Economic Indicators Category: Social Issues AND OR Time eriod:1950-1959 Category: constitutional Issues OR AND Category: Demographics Time Period: 1960-1969 CATEGORY CATEGORY CATEGORY TIME PERIOD Social Issues Constitutional Economic 1950-1959 Issues ndicators TIME PERIOD 1960-1969 CATEGORY Demographics
