Analysis of information sources in references of the Wikipedia article "Micrometer (device)" in English language version.
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: CS1 maint: archived copy as title (link) ITTC – Recommended Procedures : Sample Work Instructions Calibration of Micrometers.{{cite web}}
: CS1 maint: archived copy as title (link)
GENERAL MICROMETER INFORMATION{{cite web}}
: CS1 maint: archived copy as title (link)
GENERAL MICROMETER INFORMATION{{cite web}}
: CS1 maint: archived copy as title (link) ITTC – Recommended Procedures : Sample Work Instructions Calibration of Micrometers.