TY  - BOOK
AU  - Sutton,Caroline
TI  - How did they do that?: wonders of the far and recent past explained 
SN  - 0688022308
AV  - AG195 .S87 1984
PY  - 1984///
CY  - New York
PB  - W. Morrow
KW  - Questions and answers
N1  - Include index; Bibliography: p. 301-323
ER  -