Gurvitz, J. O. <br/><br/>
Elementary study of geometry :   Fifth year : textbook for secondary schools / 
J. O. Gurvitz, R. W. Gangnus. 
 - Moskaw :  State Textbook Publishing House,  1933. 
 - 66 p. :  ill. ;  20 cm. 
 - 513(NLA) .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry--Textbooks
<br/><br/><label>Universal Decimal Class. No.: </label>513(NLA)