http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a new way to estimate the numbers of undiscovered hydrocarbon accumulations in sparsely drilled areas
Checkerboard method--estimating undiscovered hydrocarbon accumulations
1 online resource (iii, 8 pages) : maps.
Title from title screen (viewed August 28, 2014).
"Checkerboard method"--estimating undiscovered hydrocarbon accumulations."--Page 4 of cover."
Also available online in PDF format from the U.S. Geological Survey Warehouse (http:/pubs.er.usgs.gov/).
Includes bibliographical references (page 8).