TY  - BOOK
TI  - Britannica yearbook of science and the future
SN  - 0852291558
PY  - 1971///
CY  - Chicago : 
PB  - Encyclopaedia Britannica, 
KW  - CIENCIA Y TECNOLOGIA-ANUARIOS
N1  - Editors: 1971- , Richard G. Young
ER  -