Wall, R. A. <br/><br/>
Introduction to information retrieval in science and technology  [sound recording]. 

 - Loughborough :  Loughborough University of Technology, Audio Visual Aids Unit,  1974. 
<br/><br/> Tape/Slide presentation accompanied by notes [13] p. Tape is synchronised to the slides. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library orientation.<br/>Scientific literature.