00301nam a2200121Ia 4500008004000000041000800040082001100048100002200059245002300081260004800104650001600152650001100168210210b1955   xxu||||| |||| 00| 0 eng d  aeng  a536/74  aLIBBY (Willard F)  aRadiocarbon dating  aLondonbUniversity of Chicago Press.,c1955  aRadiocarbon  adating