Millimeter Ruler
Mm Tape Measure
Form Guide GB, PDF, Pulp (Paper)
A Dictionary of Units of Measurement-0, PDF, Barrel (Unit)
Stream hydrographs by fluorescent tracers
Measuring in the Renaissance
Fractions Decimals
Free Printable Millimeter Ruler (Actual Size)
Metric Measurement
Some printable paper rulers
Printable Ruler Template in Inches – Tim's Printables
Printable Rulers
Metric Ruler
Printable Rulers