Syrocki, B. John, <br/><br/>
What is a machine / 
B. John Syrocki ; Pictured by Gregory Orloff. 
 - Chicago :  Benefic Press,  [1960] 
 - 45 p. :  ills. ;  20 cm. 
 - The What is it series .
<br/><br/>323  323 
<br/><br/><label>LCCN: </label>60006587  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers--Technology.
<br/><br/><label>Dewey Class. No.: </label>621.9 / S85W