Lachlan, Robert <br/><br/>
An elementary treatise on modern pure Geometry / 
by Robert Lachlan 
 - London :  Macmillan,  1893 
 - x, 288 p. ;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numeration<br/>Geometry, Modern--Plane
<br/><br/><label>Dewey Class. No.: </label>513.5