Description
Item Description:Title from PDF title screen (viewed on Apr. 9, 2007).
At head of title on HTML title screen: Arizona Water Science Center.
Electronic resource.
Physical Description:vi, 41 pages : digital, PDF file.
Format:Mode of access: Internet from the USGS web site. Address as of 10/15/07: http://pubs.usgs.gov/of/2007/1041/of2007-1041.pdf ; current access via PURL.
Bibliography:Includes bibliographical references (pages 38-41).