PUCPR Search for 'an:65429'

Provisional geologic map of Puerto Rico and adjacent islands

By Briggs, Reginald Peter.
Washington, D.C. U.S. Geological Survey 1964 .
1 map , Inset: Map showing relative accuracy of parts of the geologic map. 38 x 128 cm., on sheet 83 x 140 cm., folded in envelope 30 x 24 cm..

Preliminary report of the geology of the Barranquitas quadrangle, Puerto Rico

By Briggs, Reginald Peter.
Washington, D.C. United States Geological Survey 1962 .
1 map , Five cross sections in margin. | Text included on second sheet. 69 x 66 cm. on sheet 114 x 98 cm..

Changes in Stratigraphic nomenclature in the Cretaceous system, east-central Puerto Rico

By Briggs, Reginald Peter.
Whashington U.S.Govt. Print. Off. 1969 .
iii, 31 pages , As of 07/01/2016, GPO could not validate the distribution status of this little for the FDLP. "Prepared in cooperation with the Commonwealth of Puerto Rico Economic Development Administration, Industrial Research Department. 24 cm..