000			00378pab a2200133 454500
008			180718b1985 xxu||||| |||| 00| 0 eng d
100			_aZiegler, Joseph A.
245			_aDemographic change and implications for planning economic strategy
260			_c1985
300			_a179-87
650			_aPopulation - U.S.A.
773			_aSocio - Economic Planning Sciences
909			_a15548
999			_c15548 _d15548