1. Information retrieval systems;Swets;Science,1963
2. The testing of Index language devices;Cleverdon,1963
3. Review of the Aslib-Cranfield Test of the Index of Metallurgical Literature at Western Reserve University;Rees,1963
4. Tentative Bibliography on Evaluation of Information Systems;Henderson (Comp.),1965
5. Operations Research and Systems Engineering;Flagle,1960