TY - BOOK AU - Petroski,Henry TI - Invention by design: how engineers get from thought to thing SN - 0674463676 AV - TA174 .P44 1996 U1 - 620/.0042 20 PY - 1996/// CY - Cambridge, Mass. PB - Harvard University Press KW - Engineering design KW - Social aspects KW - Political aspects KW - Case studies N1 - Includes bibliographical references (p. 217-228) and index ER -