O P Bhatnagar & O P Dahama. (1980). Education and communication for development (2.). NewDelhi.
シカゴスタイル引用形O P Bhatnagar , O P Dahama. Education and Communication for Development. 2. NewDelhi, 1980.
MLA引用形式O P Bhatnagar , O P Dahama. Education and Communication for Development. 2. NewDelhi, 1980.
警告: この引用は必ずしも正確ではありません.