Mackin, Ronald <br/><br/>
Exercises in english patterns and usage : 2 the verb, tenses patterns and idioms 

 - London  Oxford University  1961 
 - 60 p 
<br/><br/><br/>Inglés 
<br/><br/><label>Subjects--Topical Terms: </label><br/>/LINGUISTICA/INGLES-GRAMATICA/REVISADO/