TY  - BOOK
AU  - Ragan,Donald M.
TI  - Structural geology: an introduction to geometrical techniques
SN  - 0-471-08043-8
AV  - GY QE601.R23 
PY  - 1985///
CY  - New York
PB  - Inc. John Wiley and Sons
KW  - Geology
KW  - Structural
N1  - Includes bibliographical references and index
ER  -