Lopshits, A. M <br/><br/>
Computation of areas of oriented figures / 
by A. M Lopshits; tran slated and adapted from the 1st Russian ed (1956) by J. Massalski and C oley Mills, Jr. 
 - Boston :  Heath,  1963. 
 - 58 p. :  ill. ;  21 cm. 
 - Topics in mathematics .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Polygons.<br/>Planimeter.<br/>Area measurement.
<br/><br/><label>Dewey Class. No.: </label>P 513.1 L65