Reproduction of copyrighted works by educators and librarians. 

 - Washington, D.C.  Copyright Office, Library of Congress  2003. 
 - 279 p.  28 cm. 
 - Circular (Library of Congress. Copyright Office)  21. .
<br/><br/> "12/27/95"--l. 37. 
<br/><br/><br/>Print of computer file. <br/>Washington, D.C. <br/>Gelman Library <br/>1966. <br/>37 leaves ; 28 cm <br/>(Circular ; 21) 
<br/><br/><br/>Originally issued as: ftp://ftp.loc.gov/pub/copyright/circs/circ21. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Copyright--United States.<br/>Photocopying services in libraries--United States.<br/>Fair use Copyright--United States.