TY  - BOOK
T1  - Geological Survey research 1969 :chapter A.
DA  - 1969.
CY  - Washington [D.C.] :
VL  - 650-A
CN  - QE75
CN  - QE75
PB  - U.S. Govt. Print. Off.,
PP  - Washington [D.C.] :
PY  - 1969.
N1  - "Significant results of investigations for fiscal year 1969, accompanied by short papers in the fields of geology, hydrology, and related sciences."
ID  - 120569
KW  - Geology
KW  - Mines and mineral resources
KW  - Water resources development
TI  - Geological Survey research 1969 :chapter A.
ER  -