Irrigation Frary, Michael, United States. Irrigation 631 U.S 2006? A038 Or. Title from title screen (viewed on Jan. 29, 2007). "Acrylic on masonite, 30" x 40"." [Washington, D.C. : U.S. Bureau of Reclamation, 2006?] 2006?] Image Electronic text with graphic : http://purl.fdlp.gov/GPO/gpo5644