TY - GEN AU - Mowery, David C AU - Rosenberg, Nathan TI - Paths of innovation: technological change in 20th-century America SN - 0521646537 U1 - 609.730904 PY - 1998/// CY - Cambridge PB - Cambridge U.P. KW - CHEMICAL ENGINEERING KW - ELECTRICAL ENGINEERING KW - INTERNAL COMBUSTION ENGINES KW - TECHNOLOGY ER -