TY  - BOOK
AU  - Pease,Maurice Henry
ED  - Puerto Rico.
TI  - Cretaceous and Lower Tertiary stratigraphy of the Naranjito and Aguas Buenas quadrangles and adjacent areas, Puerto Rico,
T2  - Geological Survey bulletin 1253
AV  - QE75 .B9 no. 1253
U1  - 551.7/7 
PY  - 1968///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Geology, Stratigraphic
KW  - Cretaceous
KW  - Tertiary
KW  - Geology
KW  - Puerto Rico
N1  - Work done in cooperation with the Department of Industrial Research, Puerto Rico Economic Development Commission; Bibliography: p. 56-57
ER  -