Maryland Route 20 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Maryland Route 20" in English language version.

refsWebsite

Global rank English rank

12maryland.gov

2,659^th place

1,407^th place

2archive.org

6^th place

1books.google.com

3^rd place

archive.org

Weller, O.E.; Parran, Thomas; Miller, W.B.; Perry, John M.; Ramsay, Andrew; Smith, J. Frank (May 1916). Annual Reports of the State Roads Commission of Maryland (1912–1915 ed.). Baltimore: Maryland State Roads Commission. pp. 54, 112. Retrieved September 18, 2016.
Zouck, Frank H.; Uhl, G. Clinton; Mudd, John F. (January 1920). Annual Reports of the State Roads Commission of Maryland (1916–1919 ed.). Baltimore: Maryland State Roads Commission. p. 46. Retrieved September 18, 2016.

books.google.com

Mackall, John N.; Crothers, Omar D.; Winebrener, D.C. (January 1924). Annual Reports of the State Roads Commission of Maryland (1920–1923 ed.). Baltimore: Maryland State Roads Commission. p. 44. Retrieved September 18, 2016.

maryland.gov

msa.maryland.gov

Maryland Geological Survey (1910). Map of Maryland (PDF) (Map). Baltimore: Maryland Geological Survey.
Maryland Geological Survey (1921). Map of Maryland: Showing State Road System and State Aid Roads (PDF) (Map). Baltimore: Maryland Geological Survey.
Maryland Geological Survey (1923). Map of Maryland: Showing State Road System and State Aid Roads (PDF) (Map). Baltimore: Maryland Geological Survey.
Maryland Geological Survey (1928). Map of Maryland: Showing State Road System and State Aid Roads (PDF) (Map). Baltimore: Maryland Geological Survey.
Maryland Road Construction Progress Log (PDF). Baltimore: Maryland State Highway Administration. Contract Numbers: K-155X-211 (May 1, 1947), K-164-215 (January 29, 1948), K-179X-1-215 (June 21, 1950), K-80-1-215 (July 26, 1950), K-187-2-215 (March 12, 1953), K-210X-1-220 (January 13, 1959), K-229-15-271 (July 30, 1968). Retrieved September 18, 2016 – via Maryland State Archives.
"Memorandum of Action of Director Neil J. Pedersen" (PDF). S.R.C. Minutes District No. 2 Kent County. Baltimore: Maryland State Highway Administration. January 19, 1988. Retrieved September 18, 2016 – via Maryland State Archives.
Maryland Road Construction Progress Log (PDF). Baltimore: Maryland State Highway Administration. Contract Numbers: K-353-0-277 (August 18, 1976), K-342-001-271 (November 8, 1978). Retrieved September 18, 2016 – via Maryland State Archives.
"Memorandum of Action of Director Neil J. Pedersen" (PDF). S.R.C. Minutes District No. 2 Kent County. Baltimore: Maryland State Highway Administration. August 28, 1985. Retrieved September 3, 2016 – via Maryland State Archives.
Bureau of Highway Statistics (January 1, 1981). Highway Location Reference, Volume 2 (PDF). Baltimore: Maryland State Highway Administration. Kent County, p. 1. Retrieved September 18, 2016 – via Maryland State Archives.

roads.maryland.gov

Highway Information Services Division (December 31, 2015). Highway Location Reference. Maryland State Highway Administration. Retrieved September 16, 2016.
- Kent County (PDF).
- Highway Information Services Division (December 31, 2014). Highway Location Reference. Maryland State Highway Administration. Retrieved September 18, 2016.
  - Kent County (PDF).
  data.imap.maryland.gov
  - Maryland State Highway Administration (2015). Maryland General Highway Statewide Grid Map (PDF) (Map). 1:12,000. Baltimore: Maryland State Highway Administration. §§ E14A, E14B, D14D, D15C. Retrieved September 16, 2016.