TY  - BOOK
AU  - Calhoun,David
TI  - Yearbook of science and the future, 1991
SN  - 0-85229-525-1
PY  - 1991///
CY  - Chicago [etc.]
PB  - Encycl. Britannica
KW  - General reference works
N1  - Index p. 489-510
ER  -