APA citiranje

Walford, A. J. (1990). Walford's guide to reference material. London: Library Association Publishing.

Trích dẫn kiểu Chicago

Walford, A. J. Walford's Guide to Reference Material. London: Library Association Publishing, 1990.

MLA citiranje

Walford, A. J. Walford's Guide to Reference Material. London: Library Association Publishing, 1990.

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