L.H. Burg Wald, <br/><br/>
Cleaning milking machines / 
Burg Wald, L.H.; U.S. Department of Agriculture 
 - Washington :  Gov. printing office,  1930. 
 - 14 p.:  fig.,  23 cm. 
 - Farmers' bulletin  No. 1315 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cleaning milking machine