Scheffler, F. L. (1974). Optimization of retrieval techniques and file structures for the CIRCOL (Central Information Reference and Control On-line) system. s.n..
Citace podle Chicago (17th ed.)Scheffler, F. L. Optimization of Retrieval Techniques and File Structures for the CIRCOL (Central Information Reference and Control On-line) System. [s.l.]: s.n., 1974.
Citace podle MLA (8th ed.)Scheffler, F. L. Optimization of Retrieval Techniques and File Structures for the CIRCOL (Central Information Reference and Control On-line) System. s.n., 1974.
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