Note on the use of diffraction grids 

 - London  ; Longman Green  1967 
 - 234p. 
<br/><br/><label>ISBN: </label> 140 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science
<br/><br/><label>Dewey Class. No.: </label>004.36  / NOT