TY  - BOOK
AU  - Mansfield, George Rogers,
CN  - QE75
CN  - QE75
CY  - Washington
DA  - 1971.
ID  - 120478
KW  - Optical illusions.
N1  - "Issued in 1922 as press notice 14328."
PB  - [U.S. Geological Survey]
PP  - Washington
PY  - 1971.
T1  - Origin of the Brown Mountain light in North Carolina.
TI  - Origin of the Brown Mountain light in North Carolina.
VL  - 646
ER  -