Simons, J. H. <br/><br/>
Magnetic Weihing and Gas-Density Balances 

 - Gainesville :   University of Florida,   1953. 
 - 36 p. ;   18 cm. 
 - Engineering Progress at the University of Florida ;   84 y 85 .
<br/><br/> Contiene además: The measurement of electron exchange in gases at low pressure, by E. . Muschlitz, Jr, and J. H. Simons.