000			00336nam a2200145Ia 4500
008			240416s9999||||xx |||||||||||||| ||und||
020			_cRS 35.00
040			_aKSEE
100			_aBiswas,N.N
245		0	_aPrinciples of Telephony .
250			_a1st.
260			_aBangalore. _bRadiant Books. _c2000
300			_a138p.
942			_cBK
999			_c111906 _d111906