Practice for operational procedures/inspection and quality control of first-generation, silver-gelatin microfilm of documents / 
National Micrographics Association. 
 - Silver Spring, Md. :  National Micrographics Association,  1983. 
 - vi, 54 p. :  ill. 
<br/><br/> "ANSI/NMA MS23-1983 (Revision of ANSI/NMA MS23-1981)." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microfilms.