Niven, Penelope. <br/><br/>
Carl Sandburg :  a biography / 
Penelope Niven. 
 - Toronto :  Macmillan,  1991 
 - xix, 843 p. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Open Access. 
<br/><br/><label>ISBN: </label>0684192519 
<br/><br/><label>LCCN: </label>9020664  
<br/><br/><label>Subjects--Personal Names: </label><br/>Sandburg, Carl, 1878-1967 --Biography.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Poets, American--20th century--Biography.<br/>Biographers--United States--Biography.