Hi, Ivan,
I believe she is looking to delete only the 020 $z that is duplicated in the 020
$a. Deleting all 020 $z's could potentially prove to be a disservice to her
patrons by eliminating valid cross reference access points.
Zach
Zach Valdes
Assistant Professor,
E-books & Special Formats Cataloger
Newton Gresham Library
Sam Houston State University
Phone: (936)294-2512
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Sam Houston State University
A Member of The Texas State University System
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