Journal of research, National Bureau of Standards, sec. C: engineering and instrumentation 

 - WASHINGTON, d.c. :  NATIONAL BUREAU OF STANDARDS, 
 - Trimestral 
<br/><br/><label>ISSN: </label>0022-4316 
 = Journal of research, National Bureau of Standards, sec. C: engineering and instrumentation 
 = J. RES. NATL. BUR. STAND., SECT. C 
<br/><br/><label>Subjects--Index Terms: </label>INGENIERIA;  TECNOLOGIA;  INDUSTRIA