Gaya APA
P.E., D, H, B, P. (1994).
QUALITY CONTROL FOURTH EDITION .
United States of America:
Prentice-Hall International, Inc..
Gaya MLA
P.E., DALE, H., BESTERFIELD,, PH.D.,.
"QUALITY CONTROL FOURTH EDITION".
United States of America:
Prentice-Hall International, Inc.,
1994.
Text.