1. Cretaceous and lower Tertiary stratigraphy in northwestern Puerto Rico Author/Creator: McIntyre, David H., author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1970 Resource Type: Book Access & Availability: Loading
2. Cretaceous and lower Tertiary stratigraphy in northwestern Puerto Rico Author/Creator: McIntyre, David H. Publication/Creation: Washington : U.S. Govt. Print. Off, 1970 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1290-1294. Access & Availability: Loading
3. Cretaceous and lower Tertiary stratigraphy in west-central Puerto Rico Author/Creator: Mattson, Peter H. Publication/Creation: Washington : U.S. Govt. Print. Off, 1967 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no.1253-1256. Access & Availability: Loading
4. Cretaceous and lower Tertiary stratigraphy in west-central Puerto Rico Author/Creator: Mattson, Peter H., author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1967 Resource Type: Book Access & Availability: Loading
5. Cretaceous and lower Tertiary stratigraphy of the Gurabo and El Yunque quadrangles, Puerto Rico Author/Creator: Seiders, Victor M. Publication/Creation: Washington : U.S. Govt. Print. Off, 1971 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1290-1294. Access & Availability: Loading
6. Cretaceous and lower Tertiary stratigraphy of the Gurabo and El Yunque quadrangles, Puerto Rico : a description of the largely marine-deposited volcaniclastic rocks and subordinate lava flows and pelagic mudstones that underlie this part of eastern Puerto Rico Author/Creator: Seiders, Victor M., author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1971 Resource Type: Book Access & Availability: Loading
7. Cretaceous and Lower Tertiary stratigraphy of the Naranjito and Aguas Buenas quadrangles and adjacent areas, Puerto Rico Author/Creator: Pease, Maurice H., Jr., 1922-2012, author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1968 Resource Type: Book Access & Availability: Loading
8. Cretaceous and Lower Tertiary stratigraphy of the Naranjito and Aguas Buenas quadrangles and adjacent areas, Puerto Rico Author/Creator: Pease, Maurice H., Jr., 1922-2012 Publication/Creation: Washington : U.S. Govt. Print. Off, 1968 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no.1253-1256. Access & Availability: Loading