Powell, R. R. (2004). Basic research methods for librarians. Westport, CN: LU.
Trích dẫn kiểu ChicagoPowell, Ronald R. Basic Research Methods for Librarians. Westport, CN: LU, 2004.
Deismireacht MLAPowell, Ronald R. Basic Research Methods for Librarians. Westport, CN: LU, 2004.
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