Inventory of data sources in science and technology :
Inventory of data sources in science and technology : a preliminary survey.
- París : UNESCO, 1982.
- v, 229 p.
"Prepared by CODATA for the General Information Programme and UNISIST"
CIENCIA ---DIRECTORIOS
TECNOLOGIA ---DIRECTORIOS
"Prepared by CODATA for the General Information Programme and UNISIST"
CIENCIA ---DIRECTORIOS
TECNOLOGIA ---DIRECTORIOS