Petry, Ann <br/><br/>
Harriet Tubman, conductor of the underground railroad / 
Ann Petry. 
 - New York :  Thomas Crowell,  1955. 
 - 247 
<br/><br/>
<br/><br/><label>ISBN: </label>0690372361 
<br/><br/><label>LCCN: </label>55-9215