Cretaceous and lower tertiary stratigraphy in northwestern Puerto Rico1932Department of Industrial ResearchtexthandbookcuaWashingtonU.S Govt. Print. Off.1970monographic diii 16 pages illustrations, maps 24 cmjuvenileby David H. McIntyre, John M. Aaron and Othmar T. TobischAs of 07/18/2016, GPO could not validate the distribution status of this tittle for the FDLPPrepared in cooperation with the Commonwealth of Puerto Rico Economic Development Administration, Industrial Research Department.United States Department of the Interior, Geological survey.includes bibliographical references (page 16)
fast
CretaceousTertiaryPuerto RicoI 19.3:1294-DCSU77012420170404125117.0000988346eng