TY  - BOOK
AU  - Powell,Cecil Frank
TI  - Frontiers of knowledge / 
PY  - 1964///
CY  - London , 
PB  - 
KW  - Science
N1  -  Prepared for the British Inforamtion Services by the Central Office of Inforamtion;  Based on talks broadcast in B.B.C
ER  -