Search Results - Jeffery, Peter L.

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  1. 1
    Research into the effectiveness of a radio and loudspeaker combination for schools in Papua New Guinea /

    Research into the effectiveness of a radio and loudspeaker combination for schools in Papua New Guinea / by Jeffery, Peter L.

    Published 1972
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  2. 2
    A handbook on the overhead projector /

    A handbook on the overhead projector / by Jeffery, Peter L.

    Published 1971
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  3. 3
    A filmstrip and slide projector for schools /

    A filmstrip and slide projector for schools / by Jeffery, Peter L.

    Published 1972
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