Estimation of world resources devoted to research and experimental development: 1980 and 1985
Estimation of world resources devoted to research and experimental development: 1980 and 1985
- Paris : UNESCO, 1991.
- iii, 43 p.; cuadr.
- Current studies and research instatistics .
OC 31:5:6 (100) =20 "1991" EST.
OC 31:5:6 (100) =20 "1991" EST.