The Survey ; For sale by USGS Information Services,
Geological Survey (U.S.)
Schruben, Paul G.
Ambroziak, Russell A.
U. S. Geological Survey digital data series ; DDS-19, release 2
Geology and resource assessment of Costa Rica at 1:500,000 scale a digital representation of maps of the U.S. Geological Survey's 1987 folio I-1865
Geology and resource assessment of Costa Rica at 1:500,000 scale a digital representation of maps of the U.S. Geological Survey's 1987 folio I-1865
Geology and resource assessment of Costa Rica at 1:500,000 scale