The perception of symbols on screen and methods of retrieval from a database /
Mary Dyson, Hilary Box, Michael Twyman.
APA Citation
Dyson, M., Twyman, M., Box, H. O. (Hilary Oldfield)., British Library. Research and Development Dept. (1994). The perception of symbols on screen and methods of retrieval from a database. Boston Spa : British Library Research and Development Department.
MLA Citation
Dyson, Mary, Michael Twyman, Hilary O. (Hilary Oldfield) Box, and British Library. Research and Development Dept. The Perception of Symbols On Screen And Methods of Retrieval From a Database. Boston Spa : British Library Research and Development Department, 1994.
Warning: These citations may not always be complete (especially for serials).