Não informado. (1971). R & D Projects in Documentation and Librarianship. International Federation for Documentation.
Citace podle Chicago (17th ed.)Não informado. R & D Projects in Documentation and Librarianship. The Hague, Holanda: International Federation for Documentation, 1971.
Citace podle MLA (8th ed.)Não informado. R & D Projects in Documentation and Librarianship. International Federation for Documentation, 1971.
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