Dyfyniad APA

Lydall, G. .. (1955). A Practical guide to precis writing & indexing. Macdonalds & Evans ltd.

Dyfyniad Arddull Chicago

Lydall, G .O. A Practical Guide to Precis Writing & Indexing. London: Macdonalds & Evans ltd, 1955.

Dyfyniad MLA

Lydall, G .O. A Practical Guide to Precis Writing & Indexing. Macdonalds & Evans ltd, 1955.

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