TY  - BOOK
AU  - Silva, Michel
TI  - Britannica Yearbook of Science and the Future
U1  - 32 
PY  - 1973///
CY  - Chicago
PB  - Encylopaedia Britanica, Inc
KW  - REFERENCE READING ROOM
KW  - Year Book
KW  - Science Year BookEconomics
ER  -