Tar Tunnel (English Wikipedia)

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

refsWebsite

Global rank English rank

2books.google.com

3^rd place

3^rd place

5^th place

5^th place

1shropshirehistory.com

low place

low place

4^th place

4^th place

1ironbridge.org.uk

low place

low place

books.google.com

J. Huxley (1983). Britain's Onshore Oil Industry. Springer. p. 29. ISBN 1349065978.
William Marshall (1818). Western Department. Vol. 2. Board of Agriculture. {{cite book}}: |work= ignored (help)

ironbridge.org.uk

Museum website accessed 26 July 2017.

nih.gov

collections.nlm.nih.gov

"Directions for taking and using Betton's true and genuine British oil" (PDF). 1758.

shropshirehistory.com

Underground canals shropshirehistory.com, accessed 19 July 2015.

worldcat.org

search.worldcat.org

Brown, Ivor John; Trinder, Barrie Stuart (1971). The Coalport Tar Tunnel. Wolverhampton: Ironbridge Gorge Museum Trust. OCLC 78219737.