nam a22 7a 4500 258698 258698 000988346 OSt 20170404125117.0 770124s1970 dcuab b f000 0 eng d (OCoLC)2696426 CSU eng CSU OWU OCLCQ STF NRU OCLCQ OCLCF IAD TXI GPO XZLN I 19.3:1294-D I 19.42/4:91-4174 I 19.42/4:91-4174 Cretaceous and lower tertiary stratigraphy in northwestern Puerto Rico by David H. McIntyre, John M. Aaron and Othmar T. Tobisch Washington U.S Govt. Print. Off. 1970 iii 16 pages illustrations, maps 24 cm rdamedia text txt rdacarrier unmediated n As of 07/18/2016, GPO could not validate the distribution status of this tittle for the FDLP Prepared 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 Geology, Stratigraphic Geology, Stratigraphic Geology Cretaceous Geologic Period (OCoLC)fst01355136 Cretaceous Tertiary Puerto Rico fast 1932 Department of Industrial Research ddc 17 0 0 ddc 0 0 10 10 5 2017-04-04 0 I 19.42/4:91-4174 80000002565516 2017-04-04 00:00:00 2017-04-04 17