000			00326nam a2200133Ia 4500
100			_aGowar, John
020			_a81-203-0834-4
250			_a2nd ed
942			_cBK
245			_aOptical communication systems
260			_aPrentice hall of India private limited, New Delhi _c1993
082			_a384.648 Gow
300			_axvi,696p
999			_c26089 _d26089