Iowa Highway 91 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Iowa Highway 91" in English language version.

refsWebsite

Global rank English rank

low place

8,907^th place

4,888^th place

2,548^th place

1,587^th place

163^rd place

185^th place

google.com

Topography map (Map). Cartography by United States Geological Survey. Iowa Geographic Map Server. 1976. Retrieved June 17, 2014.

Reeder, Greg; Stevens, Larry; Fichtner, Royce; Stoner, Tom; Wandro, Mark; Volmer, Neil (April 1, 2003). "Evaluation of the State Highway System and Road Use Tax Fund" (PDF). State of Iowa. Retrieved June 17, 2014.

2002 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2002. Retrieved June 17, 2014.
Iowa Department of Transportation (1980). State of Iowa Transportation Map (PDF) (Map). Ames: Iowa Department of Transportation. Retrieved June 17, 2014.
Iowa Department of Transportation (1983). State of Iowa Transportation Map (PDF) (Map). Ames: Iowa Department of Transportation. Retrieved June 17, 2014.
Iowa Department of Transportation (2004). State of Iowa Transportation Map (PDF) (Map). Ames: Iowa Department of Transportation. Retrieved June 13, 2014.