1. Why should we use the metric system? Author(s): Wigglesworth, Edward, 1840-1896 Publication: [Boston : s.n., 187-?] Subject(s): Metric System
2. The metric system in a nut-shell Author(s): Wigglesworth, Edward, 1840-1896 Publication: [Boston? : s.n., 1878?] Subject(s): Metric System
