00568     2200193   4500001002100000008004100021035002000062245006300082100003200145260004500177300004500222084001400267520001600281520002200297082001100319650001800330650001500348990001100363INLIS000000000009981                                   Ind    a0010-1118009981  aTECHNOLOGY and social changecTECHNOLOGY and social change  aFrancis R. Allen...[et al.]  aNew YorkbAppleton-Century- Croftsc1957  a529p.: ill.; 24 cm.c529p.: ill.; 24 cm.  a301.15TEC  aIncl. Bibl.  aIndex: p. 517-529  a301.15  aSOCIAL CHANGE  aTECHNOLOGY  a532/65