Obee, Bob <br/><br/>
The grammar activity book 
Bob Obee 
 - Cambridge  Cambridge University Press  1999 
 - 128 p. : ill., map ; 30 cm 
<br/><br/><label>ISBN: </label>9780521575799 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language -- Grammar<br/>English language -- Textbooks for foreign speakers
<br/><br/><label>Dewey Class. No.: </label>425 OBE