na INLIS000000000009981 Ind 0010-1118009981 TECHNOLOGY and social change TECHNOLOGY and social change Francis R. Allen...[et al.] New York Appleton-Century- Crofts 1957 529p.: ill.; 24 cm. 529p.: ill.; 24 cm. 301.15TEC Incl. Bibl. Index: p. 517-529 301.15 SOCIAL CHANGE TECHNOLOGY 532/65