Search Results - Levens, A. S.

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    Graphical methods in research /

    Graphical methods in research / by Levens, A. S.

    Published 1965
    Book

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  2. 2
    Graphics : analysis and conceptual design /

    Graphics : analysis and conceptual design / by Levens, A. S. (Alexander Sander), 1900-

    Published 1968
    Book

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