Boltyanskii, V. G. <br/><br/>
Envelopes / 
by V. G. Boltyanskii; translated and adapted from the Russian by Robert B. Brown 
 - Oxford :  Pergamon Press,  1964 
 - ix, 70 p. :  ill. ;  22 cm. 
 - Popular lectures in mathematics ;  v.12 .
<br/><br/> Survey of Recent east European mathematical literature ; a project conducted by Alfred L. Putham and Izaak Irszup ; The University of Chicago 
<br/><br/><label>ISBN: </label> USD 15.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Envelopes (Geometry)<br/>Mathematics<br/>Geometry
<br/><br/><label>Dewey Class. No.: </label>510