SHEEHY, EUGENE P. GUIDE TO REFERENCE BOOKS: SECOND SUPPLEMENT 1967-1968 - 8TH ED. - CHICAGO Estados Unidos AMERICA LIBRARY ASSOCIATION 1970 - 165 ISBN: 0838900739 LCCN: 108105 Subjects--Topical Terms: LIBROS DE REFERENCIA-BIBLIOGRAFIA Dewey Class. No.: 011.02