Maller, Dick. <br/><br/>
21 days to a trained dog / 
by Dick Maller, with Jeffrey Feinman ; illustrated by Wendy Frost. 
 - 141 páginas :  ilustraciones ;  22 cm. 
<br/><br/><label>ISBN: </label>0671225049 
<br/><br/><label>LCCN: </label>76-030287 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Perros--Educación.
<br/><br/><label>LC Class. No.: </label>SF431  / .M4 1977