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A Dictionary of Measures, Units and Conversions - Part 1
Provides a summary of most of the units of measurement to be found in use around the world today (and a few of historical interest), and the conversion factors needed to change them into a 'standard' unit of the SI. THis part deals with conversions between the various units.
A Dictionary of Measures, Units and Conversions - Part 2
Provides a summary of most of the units of measurement to be found in use around the world today (and a few of historical interest), and the definitions and rules of the various systems in which they are found. This part gives a general account of systems of measurement.