Perkins, Allan Kyle,  1947- <br/><br/>
The interlanguage performance of adult speakers of English as a second language on higher-order constructions ( microform) 
Allan Kyle Perkins 
 - Ann Arbor, Mich.  University Microfilms International  1977 
 - 1 microfilm reel : positive ; 35 mm. 
<br/><br/>Thesis (Ph.D.) - University of Michigan, 1976 
<br/><br/><label>ISBN: </label>Y910040104 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages--Study and teaching<br/>Language acquisition<br/>Interlanguage (Language learning)