A discrete introduction to mathematics/ 
S.A Rankin 
 - 2nd ed. 
 - Ontario:  Kinson Publishers,  1981. 
 - 343p.; 
<br/><br/><label>Subjects--Topical Terms: </label><br/>adiscete introduction to mathematics
<br/><br/><label>LC Class. No.: </label>QA39.2.D57 1981