Berry, H. A. (1965). Purchasing guide. Waterford, Connecticut: Prentice-Hall.
Trích dẫn kiểu ChicagoBerry, Harold A. Purchasing Guide. Waterford, Connecticut: Prentice-Hall, 1965.
Deismireacht MLABerry, Harold A. Purchasing Guide. Waterford, Connecticut: Prentice-Hall, 1965.
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