Preservation microfilming : a guide for librarians and archivists / edited by Nancy E. Gwinn - Chicago, Ill. : American Library Association, 1987 - xxix, 207 p. : ill. ; 26 cm. Includes index Bibliography : p. 188-196 ISBN: 0838904815 : Rs. 999.81 Subjects--Topical Terms: Preservation microfilming Dewey Class. No.: 025.7