Pamela Anderton.,
Changing to the metric system:coversion factors definifiand - London Her Majesty's Stationery Office 1979 - 55
0114800464
Metric system
389.152/PAM
Changing to the metric system:coversion factors definifiand - London Her Majesty's Stationery Office 1979 - 55
0114800464
Metric system
389.152/PAM