TY  - BOOK
AU  - Ragan, Donal M.
TI  - Structural geology : : an introduction to geometrical techniques / 
SN  - 0471704814
AV  - QE601 .R23 1973
U1  - 551.8 
PY  - 1973///
CY  - New York : 
PB  - Wiley, 
KW  - Geology, Structural
N1  - Includes Index.; Bibliography: p. 197-201
UR  - http://www.loc.gov/catdir/enhancements/fy0607/73003335-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy0607/73003335-t.html
ER  -