Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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