Shera, J. H. a. M. E. (1956). The classified catalog: Basic principles and practices. American Library Association.
Citace podle Chicago (17th ed.)Shera, Jesse H. and Margaret Egan. The Classified Catalog: Basic Principles and Practices. Chicago: American Library Association, 1956.
Citace podle MLA (9th ed.)Shera, Jesse H. and Margaret Egan. The Classified Catalog: Basic Principles and Practices. American Library Association, 1956.
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