Dyfyniad APA

ROTH , W. (1998). A SYSTEM APPROACH TO QUALITY CONTROL. JAICO PUBLISHING HOUSE.

Dyfyniad Arddull Chicago

ROTH , WILLIAM. A SYSTEM APPROACH TO QUALITY CONTROL. MUMBAI: JAICO PUBLISHING HOUSE, 1998.

Dyfyniad MLA

ROTH , WILLIAM. A SYSTEM APPROACH TO QUALITY CONTROL. JAICO PUBLISHING HOUSE, 1998.

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