Pennsylvania Route 663 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pennsylvania Route 663" in English language version.

refsWebsite

Global rank English rank

2,762^nd place

1,498^th place

low place

7,014^th place

163^rd place

185^th place

194^th place

643^rd place

2,258^th place

1,630^th place

3^rd place

books.google.com

Google (April 15, 2013). "overview of Pennsylvania Route 663" (Map). Google Maps. Google. Retrieved April 15, 2013.

Bureau of Maintenance and Operations (January 2015). Roadway Management System Straight Line Diagrams (Report) (2015 ed.). Pennsylvania Department of Transportation. Retrieved June 30, 2015.
"Details". Pennsylvania Department of Transportation. Retrieved 2021-03-18.

Map of Pennsylvania Showing State Highways (PDF) (Map). Pennsylvania Department of Highways. 1911. Retrieved January 27, 2011.
Montgomery County (PDF) (Map) (Sheet 1 ed.). Pennsylvania Department of Highways. 1967. Retrieved January 27, 2011.
Official Map of Pennsylvania (PDF) (Map). Pennsylvania Department of Highways. 1970. Retrieved 2010-06-30.

"Risk-Based Bridge Postings - State and Local Bridges" (PDF). Pennsylvania Department of Transportation. October 8, 2013. Retrieved December 18, 2014.

Tourist Map of Pennsylvania (PDF) (Map). Pennsylvania Department of Highways. 1930. Archived from the original (PDF) on July 5, 2011. Retrieved June 24, 2010.