Elements of trigonometry and statics /    
P. A. Petrie ... [et al.]. 
 - Rev. ed. 
 - Vancouver :   The Copp Clark Publishing Co. Ltd. ,   1956. 
 - viii , 502 p.  :    ill.  ;    24 cm. 
<br/><br/>  Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logarithms.--------<br/>Trigonometry.--------<br/>Mathematical statistics.--------
<br/><br/><label>Dewey Class. No.: </label>516.24