TELECOM TRAINING CENTRE. (1977). TELECOMMUNICATION. TELECOMMUNICATION TRAINING CENTER.
Chicagoスタイル(17版)引用形式TELECOM TRAINING CENTRE. TELECOMMUNICATION. JABALPUR: TELECOMMUNICATION TRAINING CENTER, 1977.
MLA(9版)引用形式TELECOM TRAINING CENTRE. TELECOMMUNICATION. TELECOMMUNICATION TRAINING CENTER, 1977.
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