What is mathematical logic? 
J.N. Crossley ... [et al.]. 
 - London  Oxford University Press  1972. 
 - 82 p.  ill. 
<br/><br/>Includes bibliographical references (p. [79]) and index. 
<br/><br/><label>LCCN: </label>90003739  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Symbolic and mathematical
<br/><br/><label>LC Class. No.: </label>QA9  / .W47 1972 
<br/><br/><label>Dewey Class. No.: </label>511.3