Rider, John Francis,  1900- <br/><br/>
Understanding vectors and phase, / 
by John F. Rider and Seymour D. Uslan 
 - New York :  John F. Rider,  1947 
 - vi, 153 p. :  ill. ;  20 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 150 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vector analysis<br/>Radio<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>512.895