Morash, Ronald P. <br/><br/>
Bridge to abstract mathematics :  mathematical proof and structures / 
Ronald P. Morash. 
 - 2nd ed. 
 - New York :  Random House,  c1987. 
 - xviii, 389 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0070430438 : 
<br/><br/><label>LCCN: </label>90042811  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Symbolic and mathematical.<br/>Mathematics.
<br/><br/><label>LC Class. No.: </label>QA 9 MOR  / .M74 1987