The difference between the potentiometric surfaces of the Aquia Aquifer, September 1982 and September 1997 in Southern Maryland /
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Author / Creator: | Curtin, Stephen E. |
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Imprint: | [Baltimore, Md.] : U.S. Geological Survey ; Denver, Colo. : Branch of Information Services [distributor], [1999] |
Description: | 1 map : photocopy ; 20 x 17 cm, on sheet 28 x 22 cm. |
Language: | English |
Series: | Open-file report ; 99-81 U.S. Geological Survey open-file report ; 99-81. |
Subject: | |
Cartographic data: | Scale [ca. 1:710,000] (W 77⁰20ʹ--W 76⁰00ʹ/N 39⁰15ʹ--N 38⁰00ʹ). |
Format: | E-Resource Map Microform U.S. Federal Government Document |
URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/12688870 |
Item Description: | Blackline print. |
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Physical Description: | Scale [ca. 1:710,000] (W 77⁰20ʹ--W 76⁰00ʹ/N 39⁰15ʹ--N 38⁰00ʹ). 1 map : photocopy ; 20 x 17 cm, on sheet 28 x 22 cm. |
Format: | Available via Internet from the USGS web site. Address as of 8/13/07: http://pubs.er.usgs.gov/usgspubs/ofr/ofr9981; current access via PURL. |