TY  - BOOK
ED  - National Academy of Sciences. Committee on Scientific and Te
TI  - Scientific and technical communicaction : : a pressing national problem and recommendations for its solution
T2  - National academy of sciencies ; 
PY  - 1969///
CY  - Washington : 
PB  - National Academy of Sciences, 
KW  - INFORMACION, TEORIA DE LA
N1  - Bibliografía, p.285-306    Apéndices, p.307-317
ER  -