Physical training. 

 - Washington  United States G.P.O.  1946. 
 - vi, 392 p.  ill.  23 cm. 
 - War Department field manual  FM 21-20 .
<br/><br/> Supersedes FM 21-20, 6 March 1941; TC 87, 17 November 1942; and WD pamphlet no. 21-9, 1 May 1944. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical education and training