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.
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.