TY  - BOOK
AU  - Powers 
TI  - An introduction to fiber optic systems 
SN  - 0256129967 
U1  - 621.38275 POW 1993 
PY  - 1993///
CY  - Boston
PB  - Irwin
KW  - Fiber optics
KW  - Optical communications
N1  - Includes bibliographical references and index
ER  -