close
1.

図書
図書
1. Diversification and integration in American industry
A study by the National Bureau of Economic Research.
出版情報: Princeton, N.J. : Princeton University Press
シリーズ名: National Bureau of Economic Research. General series ; no. 77
所蔵情報: loading…
2.

図書
図書
2. R & D, patents, and productivity
edited by Zvi Griliches.
出版情報: Chicago : University of Chicago Press, c1984.
シリーズ名: Conference report (National Bureau of Economic Research) ;
所蔵情報: loading…