TY  - BOOK
AU  - Epis,Rudy C.
AU  - Chapin,Charles Edward
ED  - United States
TI  - Stratigraphic nomenclature of the Thirtynine Mile volcanic field, central Colorado
T2  - Contributions to stratigraphyChapter C
U1  - 557.308 
PY  - 1974///.
CY  - Washington: 
PB  - United States Government Printing Office, 
KW  - Geology, Stratigraphic
KW  - Tertiary
KW  - Geology
KW  - Nomenclature
KW  - Colorado
KW  - Volcanism
N1  - Includes bibliographical references (p. C21-C23)
N2  - Descriptions of volcanic and nonvolcanic units showing their chemistry, age, and interrelationships
ER  -