Fisher, Alec <br/><br/>
Formal number theory and computability :  a workbook / 
by Alec Fisher 
 - Oxford :  Clarendon Press,  1982 
 - 200p. :  24 cm. 
 - Oxford logic guides .
<br/><br/><label>ISBN: </label>0198531788 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Symbolic and mathematical