Porter, P. G. (1978). Slow learning children's attention to educational television. Independent Broadcasting Authority.
Chicagoスタイル(17版)引用形式Porter, Pat Grant. Slow Learning Children's Attention to Educational Television. London: Independent Broadcasting Authority, 1978.
MLA(8版)引用形式Porter, Pat Grant. Slow Learning Children's Attention to Educational Television. Independent Broadcasting Authority, 1978.
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