Besterfield, D. H. (1994). Quality control (4th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Besterfield, Dale H. Quality Control. 4th ed. Englewood Cliffs, New Jersey: Prentice Hall, 1994.
Lua MLA (8ú heag.)Besterfield, Dale H. Quality Control. 4th ed. Prentice Hall, 1994.
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