000 00667nam a2200193 a 4500
005 20210219160318.0
008 081009s1990 mx r 000 0 spa d
020 _a9231024353
035 _aUPN01000163094
049 _aUNE
080 _aOC 5:6 (02) =20 MAN No. 67
245 0 0 _aManual for surveyin national scientific and technological potential :
_bfully revised second edition of the Manual first published by UNESCOin 1969.
260 _aParis :
_bUNESCO,
_c1990.
300 _a197 p. ;
_bil.
440 0 _aScience policy studies and documents ;
_v67.
690 _aProgramas cientificos- Ciencia y tecnologia- Guias
710 2 _aUNESCO
905 _aUNESCO
999 _c135207
_d135207