TY  - BOOK
AU  - Cass,I.G.
AU  - Wright,J.B
AU  - Wilson,R.C.I.
TI  - Crystals and optical properties: introduction to mapwork 
PY  - 1973///
CY  - Milton Keynes
PB  - Open University
KW  - Crystal optics
KW  - Crystals
KW  - Optical properties
N1  - backup in U-matic; pt.1. The relationship between crystal symmetry, internal structure & optical properties - pt.2. Dependence of optical properties upon orientation of thin section
ER  -