TY  - BOOK
AU  - Trease,Geoffrey
TI  - Timechanges
SN  - 086272113X
AV  - HN8 .T74 1985
PY  - 1985///
CY  - London
PB  - Kingfisher Books
KW  - Social history
KW  - Juvenile literature. Science and civilization
KW  - Juvenile literature. Technology and civilization
KW  - Juvenile literature. Social history. Science and civilization. Technology and civilization
ER  -