Hippel, Eric von
The sources of innovation / Eric von Hippel. - xi, 218 p. : illus. ; 25 cm.
Includes index.
0195094220
86028620
Teknolojik yenilikler--Ekonomik yönleri
Technological innovations--Economic aspects
HC79.T4 / H56 1995
The sources of innovation / Eric von Hippel. - xi, 218 p. : illus. ; 25 cm.
Includes index.
0195094220
86028620
Teknolojik yenilikler--Ekonomik yönleri
Technological innovations--Economic aspects
HC79.T4 / H56 1995