00773pam a2200253 a 4500 3804923 BD-DhUL 20170419175122.0 850517s1985 iau b 001 0 eng 85011800 8185336121 DLC DLC DLC BD-DhUL T14.5 .D46 1985 338.926 DEG DeGregori, Thomas R. A theory of technology : continuity and change in human development / Thomas R. DeGregori. Ames, Iowa : Iowa State University Press, c1985. xiii, 263 p. ; 23 cm. Includes indexes. Bibliography: p. 221-251. Technology Social aspects. Technology Philosophy. ddc REF 188720 188720 0 0 ddc 0 338_926000000000000_DEG 0 REF 325074 DUL DUL ASC 2017-04-19 Gift 338.926 DEG 366271 2017-04-19 2017-04-19 REF 0 0 ddc 0 338_926000000000000_DEG 0 REF 325107 DUL DUL ASC 2017-04-19 Gift 338.926 DEG 366272 2017-04-19 2017-04-19 REF