00000cam a22000004a 4500 UP-1685523046125250491 Buklod 20230503092606.0 a r |||| u| ta 991231s1990 xx r |||| u|eng|| 1560240016 (iLib)UPMNL-00000037861 Z711 W44 1990 Weeding and maintenance of reference collections Sydney J. Pierce, editor. New York Haworth Press c1990. 173 p. 23 cm. Published also as no. 29 of the Reference librarian. Collection development (Libraries) Discarding of books, periodicals, etc. Libraries Special collections Reference books. Reference books Bibliography Methodology. Reference services (Libraries) Pierce, Sydney J. UPMNL UPMNL-MAIN Z711 W44 1990 Book