international (SI) metric system and how it works
Subtitle: new (SI) unitsand changes included
By: (by Robert A. Hopkins.
Publisher: AMJ Pub. Co
Published: 1973
Place of publication: Tarzana, Calif
Language: eng
Number of pages: 281
Subjects: Metric system.; International system of units.; Weights and measures -- United States.
Notes: Includes bibliographical references.