TY  - BOOK
T1  - General geology of the Harold D. Roberts Tunnel, Colorado /
DA  - 1974.
CY  - Washington :
AU  - Robinson, Charles Sherwood,
AU  - Warner, Lawrence Allen,
AU  - Wahlstrom, Ernest E.
VL  - 831-B
CN  - QE75
CN  - QE92.H37
CN  - QE75
PB  - U.S. Govt. Print. Off.,
PP  - Washington :
PY  - 1974.
N1  - Includes index.
ID  - 226540
KW  - Geology
KW  - Geology
TI  - General geology of the Harold D. Roberts Tunnel, Colorado /
ER  -