Besterfield, D. H. (2001). Quality control (6th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Besterfield, Dale H. Quality Control. 6th ed. Upper Saddle River, N.J: Prentice Hall, 2001.
Lua MLA (9ú heag.)Besterfield, Dale H. Quality Control. 6th ed. Prentice Hall, 2001.
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