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Study of theories and models of information storage and retrieval: /The national science foundation, Washington 25, D.C. under grant no. G24070.,, August 3, 1962 by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Bethlehem: Lehigh University, 1962
Availability: Items available for loan: National Science Library (1)Call number: D 002(08) K2.

2.
Document retrieval theory, relevance, and the methodology of evaluation by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Washington: National Science Foundation, 1966
Availability: Items available for loan: National Science Library (1).

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