Griffin, William Gatewood. <br/><br/>
The principles and techniques of mechanical guarding / 
[by William G. Griffin and Sheldon W. Homan. 
 - Washington] :  U.S. Dept. of Labor, Bureau of Labor Standards,  1959. 
 - v, 58 p. :  ill. ;  26 cm. 
 - Bulletin (United States. Bureau of Labor Standards) ;  no. 197 .
<br/><br/> "Replaces Special bulletin no. 7, Suggested standards for industrial safeguards," issued in 1942 by the Bureau under its earleir name, Division of Labor Standards. 
<br/><br/><label>LCCN: </label>l  59000003  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machinery--Safety appliances.
<br/><br/><label>LC Class. No.: </label>TJ1177  / .G78