The world almanac and book of facts, 1977 :  the authority since 1868 / 
edited by George E. Delury. 
 - New York :  World Almanac Books,  1977. 
 - 976 p. 
<br/><br/><label>ISBN: </label>0084-1382 
<br/><br/><label>ISSN: </label>0-911818-06-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Almanacs, American.<br/>Statistics--Periodicals.