Text ( visual ) : unmediated Paths of innovation : technological change in 20th-century America / David C. Mowery, Nathan Rosenberg. -- Cambridge, UK ; New York : Cambridge University Press , 1998. -- x, 214 p. : ill. ; 24 cm. -- Includes bibliographical references (p. 181-199) and index. -- ISBN 0521641195 ; (BA40403629) ; https://ci.nii.ac.jp/ncid/BA40403629 Author Heading(s): Mowery, David C. ; Rosenberg, Nathan. -- Classification(s): NDC9 : 502.53 ; LCC : T21 ; DC21 : 609.73/09/04. -- Subject Heading(s): LCSH : Technology -- United States -- History -- 20th century ; LCSH : Internal combustion engines -- United States -- History -- 20th century ; LCSH : Electric engineering -- United States -- History -- 20th century ; LCSH : Chemical engineering -- United States -- History -- 20th century