Explanation in linguistics :  the logical problem of language acquisition / 
edited by Norbert Hornstein and David Lightfoot 
 - London :  Longman,  1981 
 - 288 p. ;  23 cm. 
 - Longman linguistics library  no.25 .
<br/><br/><label>ISBN: </label>0582291143  pbk. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Linguistics<br/>Language acquisition