The sources of innovation /
Hippel, Eric von.
The sources of innovation / Eric von Hippel. - New York : Oxford University Press, c1988. - xi, 218 p. : ill. ;
Includes index.
0195040856 (alk. paper)
Technological innovations--Economic aspects.
HC79.T4 / H56 1988
338/.06
The sources of innovation / Eric von Hippel. - New York : Oxford University Press, c1988. - xi, 218 p. : ill. ;
Includes index.
0195040856 (alk. paper)
Technological innovations--Economic aspects.
HC79.T4 / H56 1988
338/.06