NEWBY TONY. (1996). CUSTOMER SERVICE POCKETBOOK. RESEARC PRESS BUSINESS BOOKS.
Chicagoスタイル(17版)引用形式NEWBY TONY. CUSTOMER SERVICE POCKETBOOK. NEW DELHI: RESEARC PRESS BUSINESS BOOKS, 1996.
MLA(9版)引用形式NEWBY TONY. CUSTOMER SERVICE POCKETBOOK. RESEARC PRESS BUSINESS BOOKS, 1996.
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