00000cam a22000004a 4500 UP-8027390931313415571 Buklod 20070912120448.0 m |o d | ta 070912s1957 xx d r |||| u| (iLib)UPVIS-00000013352 04/02/04 HM221. T4 1957 Technology and social change by Francis R. Allen ... [et al.]. New York Appleton-Century-Crofts c1957. 529 p. Appleton-Century-Crofts sociology series Stack Area (7-8-10) Social change. Technology. Allen, Francis R. UPVIS UPV-ML HM221 .T4 1957 Book