Collier's encyclopedia,  with bibliography and index / 
ed. by William T. Couch [and]  David  Crawford. 
 - 20 volúmenes :  ill., mapas ;  28 cm. 
<br/><br/> "With bibliography and index" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enciclopedias y diccionarios.
<br/><br/><label>LC Class. No.: </label>AE5  / .C683 1959