Science Reference Library (British Library). (1984). Guide to government department and other libraries (26th ed.). British Library, Science Reference Library.
Citace podle Chicago (17th ed.)Science Reference Library (British Library). Guide to Government Department and Other Libraries. 26th ed. London: British Library, Science Reference Library, 1984.
Citace podle MLA (8th ed.)Science Reference Library (British Library). Guide to Government Department and Other Libraries. 26th ed. British Library, Science Reference Library, 1984.
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