00330nam a2200121 a 450000500170000002000150001708200200003210000060005211000360005824500470009426000450014130000220018620251203091858.0  a0333453131  a305.26,bD, age  d_  aWells, Nicholas, Freer, Charles  aAgeing populationa : burden or challenge ?  aHouNew DelhimillsbMacmillan Pressc1988  axviii, 270p, 22cm