Davison, George H. <br/><br/>
Microtext in the form of opaque cards and transparent microfiches :  review of progress, 1959/ 
George H. Davison 
 - Moorgate:  United Steel Companies, Research and Development Dept., Swinden Laboratories,  1960 
 - 82 p.  26 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microcards--Catalogs<br/>Microfilms--Catalogs<br/>Microphotography--Equipment and supplies
<br/><br/><label>Dewey Class. No.: </label>025.179