P.J. Howard <br/><br/>
Theory of machines 
P. J. Howard 
 - London  Macdonald & Company  1966 
 - 272.p: 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE
<br/><br/><label>Dewey Class. No.: </label>621.815  / HOW