Chan, Lois Mai. Library of Congress subject headings : principles and application / by Lois Mai Chan. - 4th ed. - Westport, Conn. : Libraries Unlimited, 2005. - xvi, 549 p. ; 25 cm. - Library and information science text series . Includes bibliographical references and index. ISBN: 1591581540 (alk. paper) 1591581567 (pbk. : alk. paper) LCCN: 2004063837 Subjects--Topical Terms: Subject headings, Library of Congress. LC Class. No.: Z695.Z8 / L5226 2005