00809cam a2200229 a 45000010008000000030008000080050017000160080041000330100013000740200015000870350012001020400025001140430012001390500013001510820016001642450131001802600054003113000065003654900047004306500030004777100072005071164184BD-DhUL20170420170305.0710319s1971    dcuac         001 0ceng    a75125340  a0870440896  a1164184  aLCbengcBD-DhULdLC  an-us---00aT39b.T504a609.73bNAT00aThose inventive Americans.cProduced by the National Geographic Special Publications Division. Foreword by Leonard Carmichael.  a[Washington,bNational Geographic Society,c1971]  a231 pagesbillus. (part col.), portraits (part col.)c27 cm.0 a[National geographic special publications] 0aInventorszUnited States.2 aNational Geographic Society (U.S.).bSpecial Publications Division.