TY  - GEN
AU  - Ragan, Donal M 
TI  - Structural geology: an inroduction to geometrical techniques
SN  - 9780521897587
PY  - 2009///
CY  - Cambridge 
PB  - Cambridge University
KW  - Stereographic projection
KW  - Tectonites
KW  - Structural geology
ER  -