Pilpel, Harriet F. <br/><br/>
A copyright guide / 
by Harriet P. Pilpel and Morton David Goldberg 
 - 4th ed. 
 - New York :  R. R. Bowker,  1969 
 - 40 p. ;  22 cm. 
<br/><br/><label>LCCN: </label>79-004156 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copyright--United States