Classification Research Group. (1961). The Sayers memorial volume: Essays in librarianship in memory of William Charles Bersick Sayers. Library Association.
Chicagoスタイル(17版)引用形式Classification Research Group. The Sayers Memorial Volume: Essays in Librarianship in Memory of William Charles Bersick Sayers. London: Library Association, 1961.
MLA(9版)引用形式Classification Research Group. The Sayers Memorial Volume: Essays in Librarianship in Memory of William Charles Bersick Sayers. Library Association, 1961.
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