Walford, A. J. (1977). Guide to reference material (3rd ed.). The Library Association.
Chicago Style (17th ed.) CitationWalford, Albert John. Guide to Reference Material. 3rd ed. London: The Library Association, 1977.
MLA (9th ed.) CitationWalford, Albert John. Guide to Reference Material. 3rd ed. The Library Association, 1977.
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