http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Committee for the Gravity Anomaly Map of North America
Decade of North American Geology Project
1 map on 4 sheets and 1 data sheet : color ; 99 x 89 cm., sheets 111 x 95 cm. and 53 x 88 cm.
Sheet 1. Northwest -- Sheet 2. Northeast -- Sheet 3. Southwest -- Sheet 4. Southeast -- Sheet 5. Data distribution.
by the Committee for the Gravity Anomaly Map of North America.
"A publication of the Decade of North American Geology Project, which is funded, in part, by the G.S.A. Foundation."