River of time.

Johnson, Timothy,

River of time. - [1st edition]. - 95 pages : illustrations, 8 plates, maps, diagrams ; 23 cm. - Yardsticks of science .

Illustrations on endpapers.

68096123

B67-19062

001887802 Uk


Time--Juvenile literature.
Time.

History Timekeeper (general)


Juvenile works.