Trapdoor mechanism (English Wikipedia)

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

refsWebsite

Global rank English rank

1armyhistory.org

low place

low place

135^th place

105^th place

1books.google.com

3^rd place

3^rd place

16^th place

23^rd place

armyhistory.org (Global: low place; English: low place)

"The Springfield Model 1873 Rifle – The Campaign for the National Museum of the United States Army". armyhistory.org. Retrieved 2017-05-11.

books.google.com (Global: 3^rd place; English: 3^rd place)

Board of Officers (1873). Ordnance memoranda, Issue 15. United States. Army. Ordnance Dept. pp. 99–106.

imdb.com (Global: 16^th place; English: 23^rd place)

"Springfield Rifle". IMDb.

nps.gov (Global: 135^th place; English: 105^th place)

"Evolution of the Breechloader - Springfield Armory National Historic Site (U.S. National Park Service)". www.nps.gov. Retrieved 2017-05-11.