Spencer, Herbert,  1924- <br/><br/>
Factors affecting the acceptability of microforms as a reading medium / 
by Herbert Spencer and Linda Reynolds 
 - London :  Readability of Print Research Unit,  1976 
 - 91 leaves :  ill. ;  30 cm. 
<br/><br/> Study conducted by the Readability of Print Research Unit, Royal College of Art, in collaboration with the National Reprographic Centre for Documentation  Includes index 
<br/><br/>Bibliography: leaves 77-84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microforms