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020 _a0870440896
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040 _aDLC
_cDLC
_dDLC
043 _an-us---
050 0 0 _aT39
_b.T5
082 0 0 _a609/.73
245 0 0 _aThose inventive Americans.
_cProduced by the National Geographic Special Publications Division. Foreword by Leonard Carmichael.
260 _a[Washington,
_bNational Geographic Society,
_cc1971
300 _a231 p.
_billus. (part col.), ports. (part col.)
_c27 cm.
490 0 _a[National geographic special publications]
650 0 _aInventors
_zUnited States.
710 2 _aNational Geographic Society (U.S.).
_bSpecial Publications Division.
906 _a7
_bcbc
_corignew
_d2
_encip
_f19
_gy-gencatlg
961 w l _t12
991 _bc-GenColl
_hT39
_i.T5
_p00050753001
_tCopy 1
_wBOOKS
999 _c7905
_d7905