Emtage, O. <br/><br/>
Key to cockshoot and Walter's geometrical conics / 
by O. Emtage 
 - London :  Macmillan,  1897 
 - 121 p. ;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conic sections--Problems, exercises, etc.<br/>Trigonometry--Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>516.9