000 00338pam a2200145a 44500
008 170807b0 xxu||||| |||| 00| 0 eng d
020 _a
082 _a
100 _aNational Bureau of Economic Re
245 _aNBER world trade data, 1970-1992
260 _aCambridge
_bNBER
_c
906 _a67132
942 _2ddc
_cC
999 _c65660
_d65660