Elbaum, Sandra N. <br/><br/>
Grammar in context.  Basic / 
Sandra N. Elbaum, Judi P. Pemán. 
 - 6th ed. Boston, Massachusetts, USA :  National Geographic Learning,  c2016. 
 - xv, 301, AP14, G4, I5 p. :  col. ill., col. map ;  28 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9781305075405 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers.<br/>English language--Grammar--Problems, exercises, etc.