31号俄勒冈州州道 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "31号俄勒冈州州道" in Chinese language version.

refsWebsite

Global rank Chinese rank

6,109^th place

low place

2web.archive.org

1^st place

1^st place

oregon.gov

Road Inventory and Classification Services Unit. Straightline Charts. Transportation Development Division, Oregon Department of Transportation. [October 3, 2015]. （原始内容存档于2015-09-24）.
Road Inventory and Classification Services Unit. 2012 Cross Reference Table of Highway Route Number to State Highway Number (PDF). Transportation Development Division, Oregon Department of Transportation. [October 3, 2015]. （原始内容存档 (PDF)于2015-06-08）.

web.archive.org

Road Inventory and Classification Services Unit. Straightline Charts. Transportation Development Division, Oregon Department of Transportation. [October 3, 2015]. （原始内容存档于2015-09-24）.
Road Inventory and Classification Services Unit. 2012 Cross Reference Table of Highway Route Number to State Highway Number (PDF). Transportation Development Division, Oregon Department of Transportation. [October 3, 2015]. （原始内容存档 (PDF)于2015-06-08）.