TY  - BOOK
AU  - Allan, W. B. 
TI  - Fibre optics : : theory and practice 
U1  - 621.369 2 ALL  
PY  - 1973///.
CY  - London : 
PB  - Plenum Press, 
KW  - Fiber optics
N1  - Includes index.
ER  -