Ershov, Yu L; Playutin, E A <br/><br/>
Mathematical logic 

 -  Mir Publishers, Moscow  1984 
 - 303 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical logic; Mathematics
<br/><br/><label>Dewey Class. No.: </label>PG 511.3  ERS-M