Opisometer (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Opisometer" in English language version.

refsWebsite

Global rank English rank

1books.google.com

3^rd place

3^rd place

1london-gazette.co.uk

3,418^th place

3,603^rd place

1mathsinstruments.me.uk

low place

low place

books.google.com

Gerard L'Estrange Turner, Scientific Instruments, 1500-1900: An Introduction, Philip Wilson Publishers 1998, ISBN 0-85667-491-5 (p.83)

london-gazette.co.uk

THE LONDON GAZETTE, DECEMBER 12, 1873

mathsinstruments.me.uk

Mathematical Instruments: Map Measurers