Lankford, Francis G. <br/><br/>
Essential mathematic 
Francis G. Lankford,  
 - 3rd 
 - New York:  Harcourt Brace Jovanovich,  1975. 
 -  viii,536p 
<br/><br/> Includes index 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510  / LAE